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30464172031 = 434715073811
BaseRepresentation
bin11100010111110011…
…100101111111111111
32220122002201021200211
4130113303211333333
5444342312001111
621554532533251
72125634122036
oct342763457777
986562637624
1030464172031
1111a1325a387
125aa2481227
132b465b45c7
14168dd5571d
15bd4766521
hex717ce5fff

30464172031 has 8 divisors (see below), whose sum is σ = 31835890944. Its totient is φ = 29122600920.

The previous prime is 30464172017. The next prime is 30464172061. The reversal of 30464172031 is 13027146403.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30464172031 - 225 = 30430617599 is a prime.

It is a super-2 number, since 2×304641720312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30464171984 and 30464172002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30464172001) 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, 7534885 + ... + 7538926.

It is an arithmetic number, because the mean of its divisors is an integer number (3979486368).

Almost surely, 230464172031 is an apocalyptic number.

30464172031 is a deficient number, since it is larger than the sum of its proper divisors (1371718913).

30464172031 is a wasteful number, since it uses less digits than its factorization.

30464172031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15073901.

The product of its (nonzero) digits is 12096, while the sum is 31.

The spelling of 30464172031 in words is "thirty billion, four hundred sixty-four million, one hundred seventy-two thousand, thirty-one".

Divisors: 1 43 47 2021 15073811 648173873 708469117 30464172031