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152139090 = 23538313241
BaseRepresentation
bin10010001000101…
…11010101010010
3101121021110121010
421010113111102
5302421422330
623032511350
73525106125
oct1104272522
9347243533
10152139090
1178973394
1242b4b556
132569a73c
14162c43bc
15d5533b0
hex9117552

152139090 has 32 divisors (see below), whose sum is σ = 366114816. Its totient is φ = 40461440.

The previous prime is 152139073. The next prime is 152139101. The reversal of 152139090 is 90931251.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4870 + ... + 18110.

It is an arithmetic number, because the mean of its divisors is an integer number (11441088).

Almost surely, 2152139090 is an apocalyptic number.

152139090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

152139090 is an abundant number, since it is smaller than the sum of its proper divisors (213975726).

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

152139090 is a wasteful number, since it uses less digits than its factorization.

152139090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13634.

The product of its (nonzero) digits is 2430, while the sum is 30.

The square root of 152139090 is about 12334.4675604584. The cubic root of 152139090 is about 533.8430643210.

The spelling of 152139090 in words is "one hundred fifty-two million, one hundred thirty-nine thousand, ninety".

Divisors: 1 2 3 5 6 10 15 30 383 766 1149 1915 2298 3830 5745 11490 13241 26482 39723 66205 79446 132410 198615 397230 5071303 10142606 15213909 25356515 30427818 50713030 76069545 152139090