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152690 = 2515269
BaseRepresentation
bin100101010001110010
321202110012
4211101302
514341230
63134522
71204106
oct452162
9252405
10152690
11a479a
1274442
1354665
143d906
1530395
hex25472

152690 has 8 divisors (see below), whose sum is σ = 274860. Its totient is φ = 61072.

The previous prime is 152681. The next prime is 152717. The reversal of 152690 is 96251.

It can be written as a sum of positive squares in 2 ways, for example, as 151321 + 1369 = 389^2 + 37^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1526902 = 46628472200, which contains 22 as substring.

It is a nialpdrome in base 12.

It is an unprimeable number.

152690 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7625 + ... + 7644.

2152690 is an apocalyptic number.

152690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

152690 is a deficient number, since it is larger than the sum of its proper divisors (122170).

152690 is a wasteful number, since it uses less digits than its factorization.

152690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15276.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 152690 is about 390.7556781417. The cubic root of 152690 is about 53.4486653481.

The spelling of 152690 in words is "one hundred fifty-two thousand, six hundred ninety".

Divisors: 1 2 5 10 15269 30538 76345 152690