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138411522 = 232472592
BaseRepresentation
bin10000011111111…
…11111000000010
3100122110000220200
420033333320002
5240413132042
621422350030
73300323064
oct1017777002
9318400820
10138411522
1171147697
123a42b316
13228a2312
141454d734
15c240c4c
hex83ffe02

138411522 has 54 divisors (see below), whose sum is σ = 311689443. Its totient is φ = 44390184.

The previous prime is 138411517. The next prime is 138411557. The reversal of 138411522 is 225114831.

138411522 is a `hidden beast` number, since 138 + 4 + 1 + 1 + 522 = 666.

It can be written as a sum of positive squares in only one way, i.e., 69205761 + 69205761 = 8319^2 + 8319^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=8319.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 2345929 + ... + 2345987.

Almost surely, 2138411522 is an apocalyptic number.

138411522 is an abundant number, since it is smaller than the sum of its proper divisors (173277921).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

138411522 is an equidigital number, since it uses as much as digits as its factorization.

138411522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220 (or 111 counting only the distinct ones).

The product of its digits is 1920, while the sum is 27.

The square root of 138411522 is about 11764.8426253818. The cubic root of 138411522 is about 517.2780873084.

The spelling of 138411522 in words is "one hundred thirty-eight million, four hundred eleven thousand, five hundred twenty-two".

Divisors: 1 2 3 6 9 18 47 59 94 118 141 177 282 354 423 531 846 1062 2209 2773 3481 4418 5546 6627 6962 8319 10443 13254 16638 19881 20886 24957 31329 39762 49914 62658 130331 163607 260662 327214 390993 490821 781986 981642 1172979 1472463 2345958 2944926 7689529 15379058 23068587 46137174 69205761 138411522