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629161087 = 2543247409
BaseRepresentation
bin100101100000000…
…011110001111111
31121211212200202111
4211200003301333
52242031123322
6142233034451
721406531612
oct4540036177
91554780674
10629161087
112a3166045
12156855a27
13a0468a89
145d7b8179
153a37d177
hex25803c7f

629161087 has 4 divisors (see below), whose sum is σ = 629411040. Its totient is φ = 628911136.

The previous prime is 629161063. The next prime is 629161097. The reversal of 629161087 is 780161926.

629161087 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 629161087 - 211 = 629159039 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (629161097) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121162 + ... + 126247.

It is an arithmetic number, because the mean of its divisors is an integer number (157352760).

Almost surely, 2629161087 is an apocalyptic number.

629161087 is a deficient number, since it is larger than the sum of its proper divisors (249953).

629161087 is a wasteful number, since it uses less digits than its factorization.

629161087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249952.

The product of its (nonzero) digits is 36288, while the sum is 40.

The square root of 629161087 is about 25083.0836820356. The cubic root of 629161087 is about 856.8812069639.

The spelling of 629161087 in words is "six hundred twenty-nine million, one hundred sixty-one thousand, eighty-seven".

Divisors: 1 2543 247409 629161087