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30855653156 = 2240153192113
BaseRepresentation
bin11100101111001000…
…111110011100100100
32221122101100120211202
4130233020332130210
51001143021400111
622101435422032
72141426503316
oct345710763444
987571316752
1030855653156
11120a42369a9
125b915b4918
132ba9732543
1416c9d3d7b6
15c08ce5b3b
hex72f23e724

30855653156 has 12 divisors (see below), whose sum is σ = 53999018892. Its totient is φ = 15427362048.

The previous prime is 30855653137. The next prime is 30855653159. The reversal of 30855653156 is 65135655803.

It can be written as a sum of positive squares in 2 ways, for example, as 23149622500 + 7706030656 = 152150^2 + 87784^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 30855653156.

It is not an unprimeable number, because it can be changed into a prime (30855653159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64556 + ... + 256668.

It is an arithmetic number, because the mean of its divisors is an integer number (4499918241).

Almost surely, 230855653156 is an apocalyptic number.

It is an amenable number.

30855653156 is a deficient number, since it is larger than the sum of its proper divisors (23143365736).

30855653156 is a wasteful number, since it uses less digits than its factorization.

30855653156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232270 (or 232268 counting only the distinct ones).

The product of its (nonzero) digits is 1620000, while the sum is 47.

The spelling of 30855653156 in words is "thirty billion, eight hundred fifty-five million, six hundred fifty-three thousand, one hundred fifty-six".

Divisors: 1 2 4 40153 80306 160612 192113 384226 768452 7713913289 15427826578 30855653156