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30813012573 = 372253165123
BaseRepresentation
bin11100101100100110…
…010100001001011101
32221112102010012221220
4130230212110021131
51001101112400243
622053313443553
72140401166620
oct345446241135
987472105856
1030813012573
1112082162452
125b7b2705b9
132ba0952b25
1416c43dddb7
15c051c1783
hex72c99425d

30813012573 has 16 divisors (see below), whose sum is σ = 46955966976. Its totient is φ = 17606383920.

The previous prime is 30813012563. The next prime is 30813012583. The reversal of 30813012573 is 37521031803.

It is an interprime number because it is at equal distance from previous prime (30813012563) and next prime (30813012583).

It is not a de Polignac number, because 30813012573 - 216 = 30812947037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30813012523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 440590 + ... + 505712.

It is an arithmetic number, because the mean of its divisors is an integer number (2934747936).

Almost surely, 230813012573 is an apocalyptic number.

It is an amenable number.

30813012573 is a deficient number, since it is larger than the sum of its proper divisors (16142954403).

30813012573 is a wasteful number, since it uses less digits than its factorization.

30813012573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87664.

The product of its (nonzero) digits is 15120, while the sum is 33.

The spelling of 30813012573 in words is "thirty billion, eight hundred thirteen million, twelve thousand, five hundred seventy-three".

Divisors: 1 3 7 21 22531 65123 67593 157717 195369 455861 473151 1367583 1467286313 4401858939 10271004191 30813012573