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139815034 = 21922916067
BaseRepresentation
bin10000101010101…
…10100001111010
3100202002100011121
420111112201322
5241243040114
621512415454
73315260002
oct1025264172
9322070147
10139815034
1171a16117
123a9a758a
1322c740b8
14147d7002
15c41ba24
hex855687a

139815034 has 16 divisors (see below), whose sum is σ = 221738400. Its totient is φ = 65934864.

The previous prime is 139815031. The next prime is 139815041. The reversal of 139815034 is 430518931.

It is not an unprimeable number, because it can be changed into a prime (139815031) 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 7 ways as a sum of consecutive naturals, for example, 669 + ... + 16735.

It is an arithmetic number, because the mean of its divisors is an integer number (13858650).

Almost surely, 2139815034 is an apocalyptic number.

139815034 is a deficient number, since it is larger than the sum of its proper divisors (81923366).

139815034 is a wasteful number, since it uses less digits than its factorization.

139815034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16317.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 139815034 is about 11824.3407427222. The cubic root of 139815034 is about 519.0206344361.

The spelling of 139815034 in words is "one hundred thirty-nine million, eight hundred fifteen thousand, thirty-four".

Divisors: 1 2 19 38 229 458 4351 8702 16067 32134 305273 610546 3679343 7358686 69907517 139815034