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30460961391 = 372950017999
BaseRepresentation
bin11100010111100111…
…010110001001101111
32220121212200011112020
4130113213112021233
5444341001231031
621554340041223
72125564620420
oct342747261157
986555604466
1030460961391
1111a11467163
125aa1393213
132b45a2c113
14168d75b647
15bd4330096
hex7179d626f

30460961391 has 16 divisors (see below), whose sum is σ = 48017280000. Its totient is φ = 16806047328.

The previous prime is 30460961389. The next prime is 30460961407. The reversal of 30460961391 is 19316906403.

It is not a de Polignac number, because 30460961391 - 21 = 30460961389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30460961341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25008391 + ... + 25009608.

It is an arithmetic number, because the mean of its divisors is an integer number (3001080000).

Almost surely, 230460961391 is an apocalyptic number.

30460961391 is a deficient number, since it is larger than the sum of its proper divisors (17556318609).

30460961391 is a wasteful number, since it uses less digits than its factorization.

30460961391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50018038.

The product of its (nonzero) digits is 104976, while the sum is 42.

The spelling of 30460961391 in words is "thirty billion, four hundred sixty million, nine hundred sixty-one thousand, three hundred ninety-one".

Divisors: 1 3 7 21 29 87 203 609 50017999 150053997 350125993 1050377979 1450521971 4351565913 10153653797 30460961391