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152172100 = 22521789513
BaseRepresentation
bin10010001000111…
…11011001000100
3101121100010212201
421010133121010
5302424001400
623033324244
73525304303
oct1104373104
9347303781
10152172100
1178996173
1242b66684
13256ac782
14162d243a
15d55d06a
hex911f644

152172100 has 36 divisors (see below), whose sum is σ = 349641684. Its totient is φ = 57287680.

The previous prime is 152172047. The next prime is 152172127. The reversal of 152172100 is 1271251.

It can be written as a sum of positive squares in 6 ways, for example, as 586756 + 151585344 = 766^2 + 12312^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43057 + ... + 46456.

It is an arithmetic number, because the mean of its divisors is an integer number (9712269).

Almost surely, 2152172100 is an apocalyptic number.

152172100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

152172100 is an abundant number, since it is smaller than the sum of its proper divisors (197469584).

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

152172100 is a wasteful number, since it uses less digits than its factorization.

152172100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89544 (or 89537 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 19.

The square root of 152172100 is about 12335.8056080663. The cubic root of 152172100 is about 533.8816712851.

The spelling of 152172100 in words is "one hundred fifty-two million, one hundred seventy-two thousand, one hundred".

Divisors: 1 2 4 5 10 17 20 25 34 50 68 85 100 170 340 425 850 1700 89513 179026 358052 447565 895130 1521721 1790260 2237825 3043442 4475650 6086884 7608605 8951300 15217210 30434420 38043025 76086050 152172100