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29642907 = 371974293
BaseRepresentation
bin111000100010…
…1000010011011
32001210000102110
41301011002123
530042033112
62535203403
7506650320
oct161050233
961700373
1029642907
1115807178
129b16563
1361ab5a8
143d18b47
15290813c
hex1c4509b

29642907 has 16 divisors (see below), whose sum is σ = 47548160. Its totient is φ = 16047072.

The previous prime is 29642903. The next prime is 29642923. The reversal of 29642907 is 70924692.

It is not a de Polignac number, because 29642907 - 22 = 29642903 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29642903) 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 15 ways as a sum of consecutive naturals, for example, 36748 + ... + 37545.

It is an arithmetic number, because the mean of its divisors is an integer number (2971760).

Almost surely, 229642907 is an apocalyptic number.

29642907 is a deficient number, since it is larger than the sum of its proper divisors (17905253).

29642907 is a wasteful number, since it uses less digits than its factorization.

29642907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74322.

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 29642907 is about 5444.5300072642. The cubic root of 29642907 is about 309.4854697424.

The spelling of 29642907 in words is "twenty-nine million, six hundred forty-two thousand, nine hundred seven".

Divisors: 1 3 7 19 21 57 133 399 74293 222879 520051 1411567 1560153 4234701 9880969 29642907