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30391935052 = 2247533330313
BaseRepresentation
bin11100010011100000…
…000010000001001100
32220110001210021012011
4130103200002001030
5444220313410202
621543432351004
72124066120433
oct342340020114
986401707164
1030391935052
11119865006a6
125a82245464
132b3464182b
14168451011a
15bcd247bd7
hex71380204c

30391935052 has 24 divisors (see below), whose sum is σ = 54329478336. Its totient is φ = 14869369728.

The previous prime is 30391934957. The next prime is 30391935053. The reversal of 30391935052 is 25053919303.

It is a junction number, because it is equal to n+sod(n) for n = 30391934996 and 30391935014.

It is not an unprimeable number, because it can be changed into a prime (30391935053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 987448 + ... + 1017760.

It is an arithmetic number, because the mean of its divisors is an integer number (2263728264).

Almost surely, 230391935052 is an apocalyptic number.

It is an amenable number.

30391935052 is a deficient number, since it is larger than the sum of its proper divisors (23937543284).

30391935052 is a wasteful number, since it uses less digits than its factorization.

30391935052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35697 (or 35695 counting only the distinct ones).

The product of its (nonzero) digits is 109350, while the sum is 40.

The spelling of 30391935052 in words is "thirty billion, three hundred ninety-one million, nine hundred thirty-five thousand, fifty-two".

Divisors: 1 2 4 47 94 188 5333 10666 21332 30313 60626 121252 250651 501302 1002604 1424711 2849422 5698844 161659229 323318458 646636916 7597983763 15195967526 30391935052