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31301045952 = 2631114820571
BaseRepresentation
bin11101001001101100…
…000000111011000000
32222210102102212220020
4131021230000323000
51003101031432302
622213550013440
72155445333511
oct351154007300
988712385806
1031301045952
1112302696120
1260967a7280
132c4aaa8187
14172d15ca08
15c32e73ebc
hex749b00ec0

31301045952 has 56 divisors (see below), whose sum is σ = 90346206912. Its totient is φ = 9485164800.

The previous prime is 31301045939. The next prime is 31301045957. The reversal of 31301045952 is 25954010313.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (31301045957) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7408174 + ... + 7412397.

Almost surely, 231301045952 is an apocalyptic number.

31301045952 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

31301045952 is an abundant number, since it is smaller than the sum of its proper divisors (59045160960).

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

31301045952 is a wasteful number, since it uses less digits than its factorization.

31301045952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14820597 (or 14820587 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 33.

The spelling of 31301045952 in words is "thirty-one billion, three hundred one million, forty-five thousand, nine hundred fifty-two".

Divisors: 1 2 3 4 6 8 11 12 16 22 24 32 33 44 48 64 66 88 96 132 176 192 264 352 528 704 1056 2112 14820571 29641142 44461713 59282284 88923426 118564568 163026281 177846852 237129136 326052562 355693704 474258272 489078843 652105124 711387408 948516544 978157686 1304210248 1422774816 1956315372 2608420496 2845549632 3912630744 5216840992 7825261488 10433681984 15650522976 31301045952