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138572060 = 22511629873
BaseRepresentation
bin10000100001001…
…11000100011100
3100122202012010112
420100213010130
5240433301220
621430025152
73301562114
oct1020470434
9318665115
10138572060
1171247270
123a4a81b8
132292a403
1414592044
15c2735c5
hex842711c

138572060 has 24 divisors (see below), whose sum is σ = 317456496. Its totient is φ = 50389760.

The previous prime is 138572047. The next prime is 138572089. The reversal of 138572060 is 60275831.

It is a happy number.

138572060 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 314717 + ... + 315156.

It is an arithmetic number, because the mean of its divisors is an integer number (13227354).

Almost surely, 2138572060 is an apocalyptic number.

138572060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

138572060 is an abundant number, since it is smaller than the sum of its proper divisors (178884436).

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

138572060 is a wasteful number, since it uses less digits than its factorization.

138572060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 629893 (or 629891 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 138572060 is about 11771.6634338567. The cubic root of 138572060 is about 517.4780001072.

The spelling of 138572060 in words is "one hundred thirty-eight million, five hundred seventy-two thousand, sixty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 629873 1259746 2519492 3149365 6298730 6928603 12597460 13857206 27714412 34643015 69286030 138572060