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138587482 = 21119331549
BaseRepresentation
bin10000100001010…
…10110101011010
3100122202222021201
420100222311122
5240434244412
621430224414
73301655065
oct1020526532
9318688251
10138587482
1171257910
123a4b510a
1322934437
14145978dc
15c277e57
hex842ad5a

138587482 has 16 divisors (see below), whose sum is σ = 238716000. Its totient is φ = 59678640.

The previous prime is 138587479. The next prime is 138587483. The reversal of 138587482 is 284785831.

It is not an unprimeable number, because it can be changed into a prime (138587483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 165357 + ... + 166192.

It is an arithmetic number, because the mean of its divisors is an integer number (14919750).

Almost surely, 2138587482 is an apocalyptic number.

138587482 is a deficient number, since it is larger than the sum of its proper divisors (100128518).

138587482 is a wasteful number, since it uses less digits than its factorization.

138587482 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331581.

The product of its digits is 430080, while the sum is 46.

The square root of 138587482 is about 11772.3184632425. The cubic root of 138587482 is about 517.4971964966.

The spelling of 138587482 in words is "one hundred thirty-eight million, five hundred eighty-seven thousand, four hundred eighty-two".

Divisors: 1 2 11 19 22 38 209 418 331549 663098 3647039 6299431 7294078 12598862 69293741 138587482