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30530479040 = 265791916323
BaseRepresentation
bin11100011011110000…
…100010001111000000
32220210201111000210222
4130123300202033000
51000011300312130
622005302042212
72130400534655
oct343360421700
986721430728
1030530479040
1111a47728866
125b00719368
132b5725c219
141698a95c2c
15bda4b2ce5
hex71bc223c0

30530479040 has 112 divisors (see below), whose sum is σ = 74018119680. Its totient is φ = 11992581120.

The previous prime is 30530479039. The next prime is 30530479069. The reversal of 30530479040 is 4097403503.

It is a super-2 number, since 2×305304790402 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4825319 + ... + 4831641.

Almost surely, 230530479040 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 30530479040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37009059840).

30530479040 is an abundant number, since it is smaller than the sum of its proper divisors (43487640640).

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

30530479040 is a wasteful number, since it uses less digits than its factorization.

30530479040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6610 (or 6600 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 35.

The spelling of 30530479040 in words is "thirty billion, five hundred thirty million, four hundred seventy-nine thousand, forty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 79 80 158 160 191 316 320 382 395 632 764 790 955 1264 1528 1580 1910 2528 3056 3160 3820 5056 6112 6320 6323 7640 12224 12640 12646 15089 15280 25280 25292 30178 30560 31615 50584 60356 61120 63230 75445 101168 120712 126460 150890 202336 241424 252920 301780 404672 482848 499517 505840 603560 965696 999034 1011680 1207120 1207693 1998068 2023360 2414240 2415386 2497585 3996136 4828480 4830772 4995170 6038465 7992272 9661544 9990340 12076930 15984544 19323088 19980680 24153860 31969088 38646176 39961360 48307720 77292352 79922720 95407747 96615440 159845440 190815494 193230880 381630988 386461760 477038735 763261976 954077470 1526523952 1908154940 3053047904 3816309880 6106095808 7632619760 15265239520 30530479040