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29131049 = 58749627
BaseRepresentation
bin110111100100…
…0000100101001
32000211000021202
41233020010221
524424143144
62520213545
7502416113
oct157100451
960730252
1029131049
1115497652
12990a2b5
13605c60c
143c243b3
15285664e
hex1bc8129

29131049 has 4 divisors (see below), whose sum is σ = 29181264. Its totient is φ = 29080836.

The previous prime is 29131031. The next prime is 29131097. The reversal of 29131049 is 94013192.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 29131049 - 216 = 29065513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29131019) 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 3 ways as a sum of consecutive naturals, for example, 24227 + ... + 25400.

It is an arithmetic number, because the mean of its divisors is an integer number (7295316).

Almost surely, 229131049 is an apocalyptic number.

It is an amenable number.

29131049 is a deficient number, since it is larger than the sum of its proper divisors (50215).

29131049 is an equidigital number, since it uses as much as digits as its factorization.

29131049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50214.

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 29131049 is about 5397.3186861626. The cubic root of 29131049 is about 307.6937734754.

The spelling of 29131049 in words is "twenty-nine million, one hundred thirty-one thousand, forty-nine".

Divisors: 1 587 49627 29131049