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138013842588 = 22319605323871
BaseRepresentation
bin1000000010001001000…
…1000001110010011100
3111012020102101121222120
42000202101001302130
54230123020430323
6143222551342540
712654053206626
oct2004221016234
9435212347876
10138013842588
1153593241736
12228b8681a50
131002625351b
146973937c16
1538cb6955e3
hex2022441c9c

138013842588 has 24 divisors (see below), whose sum is σ = 338981368320. Its totient is φ = 43583318640.

The previous prime is 138013842587. The next prime is 138013842611. The reversal of 138013842588 is 885248310831.

It is a self number, because there is not a number n which added to its sum of digits gives 138013842588.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138013842583) 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, 302661708 + ... + 302662163.

It is an arithmetic number, because the mean of its divisors is an integer number (14124223680).

Almost surely, 2138013842588 is an apocalyptic number.

It is an amenable number.

138013842588 is an abundant number, since it is smaller than the sum of its proper divisors (200967525732).

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

138013842588 is a wasteful number, since it uses less digits than its factorization.

138013842588 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 605323897 (or 605323895 counting only the distinct ones).

The product of its (nonzero) digits is 1474560, while the sum is 51.

The spelling of 138013842588 in words is "one hundred thirty-eight billion, thirteen million, eight hundred forty-two thousand, five hundred eighty-eight".

Divisors: 1 2 3 4 6 12 19 38 57 76 114 228 605323871 1210647742 1815971613 2421295484 3631943226 7263886452 11501153549 23002307098 34503460647 46004614196 69006921294 138013842588