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30389324742656 = 219116078681
BaseRepresentation
bin1101110100011100100001…
…11010000000000000000000
310222121012011021212212102022
412322032100322000000000
512440344314113231111
6144344355115341012
76254361540165035
oct672162072000000
9128535137785368
1030389324742656
119757049629620
1234a97a3451768
1313c5916204a69
14770bcb85338c
1537a7693cd2db
hex1ba390e80000

30389324742656 has 160 divisors (see below), whose sum is σ = 66420800582400. Its totient is φ = 13788984115200.

The previous prime is 30389324742599. The next prime is 30389324742671. The reversal of 30389324742656 is 65624742398303.

It is a super-2 number, since 2×303893247426562 (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3500666636 + ... + 3500675316.

It is an arithmetic number, because the mean of its divisors is an integer number (415130003640).

Almost surely, 230389324742656 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30389324742656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33210400291200).

30389324742656 is an abundant number, since it is smaller than the sum of its proper divisors (36031475839744).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30389324742656 is an frugal number, since it uses more digits than its factorization.

30389324742656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9337 (or 9301 counting only the distinct ones).

The product of its (nonzero) digits is 156764160, while the sum is 62.

The spelling of 30389324742656 in words is "thirty trillion, three hundred eighty-nine billion, three hundred twenty-four million, seven hundred forty-two thousand, six hundred fifty-six".

Divisors: 1 2 4 8 11 16 22 32 44 64 88 128 176 256 352 512 607 704 1024 1214 1408 2048 2428 2816 4096 4856 5632 6677 8192 8681 9712 11264 13354 16384 17362 19424 22528 26708 32768 34724 38848 45056 53416 65536 69448 77696 90112 95491 106832 131072 138896 155392 180224 190982 213664 262144 277792 310784 360448 381964 427328 524288 555584 621568 720896 763928 854656 1111168 1243136 1441792 1527856 1709312 2222336 2486272 2883584 3055712 3418624 4444672 4972544 5269367 5767168 6111424 6837248 8889344 9945088 10538734 12222848 13674496 17778688 19890176 21077468 24445696 27348992 35557376 39780352 42154936 48891392 54697984 57963037 71114752 79560704 84309872 97782784 109395968 115926074 142229504 159121408 168619744 195565568 218791936 231852148 284459008 318242816 337239488 391131136 437583872 463704296 568918016 674478976 782262272 875167744 927408592 1137836032 1348957952 1564524544 1750335488 1854817184 2275672064 2697915904 3129049088 3500670976 3709634368 4551344128 5395831808 6258098176 7419268736 10791663616 12516196352 14838537472 21583327232 25032392704 29677074944 43166654464 50064785408 59354149888 86333308928 118708299776 172666617856 237416599552 345333235712 474833199104 690666471424 949666398208 1381332942848 1899332796416 2762665885696 3798665592832 7597331185664 15194662371328 30389324742656