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231450303552 = 26313863107449
BaseRepresentation
bin1101011110001110000…
…0110101110001000000
3211010102011120122022220
43113203200311301000
512243002234203202
6254154331131040
722502361056046
oct3274340656100
9733364518286
10231450303552
118a180731806
1238a342a3a80
1318a96cc6350
14b2b8db4396
15604957cabc
hex35e3835c40

231450303552 has 112 divisors (see below), whose sum is σ = 660255321600. Its totient is φ = 71132295168.

The previous prime is 231450303509. The next prime is 231450303569. The reversal of 231450303552 is 255303054132.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2100324 + ... + 2207772.

It is an arithmetic number, because the mean of its divisors is an integer number (5895136800).

Almost surely, 2231450303552 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 231450303552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (330127660800).

231450303552 is an abundant number, since it is smaller than the sum of its proper divisors (428805018048).

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

231450303552 is a wasteful number, since it uses less digits than its factorization.

231450303552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108340 (or 108330 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 33.

Adding to 231450303552 its reverse (255303054132), we get a palindrome (486753357684).

The spelling of 231450303552 in words is "two hundred thirty-one billion, four hundred fifty million, three hundred three thousand, five hundred fifty-two".

Divisors: 1 2 3 4 6 8 12 13 16 24 26 32 39 48 52 64 78 96 104 156 192 208 312 416 624 832 863 1248 1726 2496 2589 3452 5178 6904 10356 11219 13808 20712 22438 27616 33657 41424 44876 55232 67314 82848 89752 107449 134628 165696 179504 214898 269256 322347 359008 429796 538512 644694 718016 859592 1077024 1289388 1396837 1719184 2154048 2578776 2793674 3438368 4190511 5157552 5587348 6876736 8381022 10315104 11174696 16762044 20630208 22349392 33524088 44698784 67048176 89397568 92728487 134096352 185456974 268192704 278185461 370913948 556370922 741827896 1112741844 1205470331 1483655792 2225483688 2410940662 2967311584 3616410993 4450967376 4821881324 5934623168 7232821986 8901934752 9643762648 14465643972 17803869504 19287525296 28931287944 38575050592 57862575888 77150101184 115725151776 231450303552