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29837913 = 373107271
BaseRepresentation
bin111000111010…
…0101001011001
32002010220220220
41301310221121
530114303123
62543310253
7511422000
oct161645131
962126826
1029837913
111592a736
129bab389
136249291
143d69c37
152945ce3
hex1c74a59

29837913 has 32 divisors (see below), whose sum is σ = 47001600. Its totient is φ = 16828560.

The previous prime is 29837911. The next prime is 29837921. The reversal of 29837913 is 31973892.

It is not a de Polignac number, because 29837913 - 21 = 29837911 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (29837911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 109968 + ... + 110238.

It is an arithmetic number, because the mean of its divisors is an integer number (1468800).

Almost surely, 229837913 is an apocalyptic number.

It is an amenable number.

29837913 is a deficient number, since it is larger than the sum of its proper divisors (17163687).

29837913 is a wasteful number, since it uses less digits than its factorization.

29837913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402 (or 388 counting only the distinct ones).

The product of its digits is 81648, while the sum is 42.

The square root of 29837913 is about 5462.4090839116. The cubic root of 29837913 is about 310.1626375175.

The spelling of 29837913 in words is "twenty-nine million, eight hundred thirty-seven thousand, nine hundred thirteen".

Divisors: 1 3 7 21 49 107 147 271 321 343 749 813 1029 1897 2247 5243 5691 13279 15729 28997 36701 39837 86991 92953 110103 202979 278859 608937 1420853 4262559 9945971 29837913