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130702725 = 3252580901
BaseRepresentation
bin1111100101001…
…01110110000101
3100002221101102200
413302211312011
5231424441400
620545225113
73144645336
oct762456605
9302841380
10130702725
116786198a
1237932199
13211035ba
141350428d
15b71bb00
hex7ca5d85

130702725 has 18 divisors (see below), whose sum is σ = 234103506. Its totient is φ = 69708000.

The previous prime is 130702709. The next prime is 130702769. The reversal of 130702725 is 527207031.

It can be written as a sum of positive squares in 3 ways, for example, as 27029601 + 103673124 = 5199^2 + 10182^2 .

It is not a de Polignac number, because 130702725 - 24 = 130702709 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 290226 + ... + 290675.

Almost surely, 2130702725 is an apocalyptic number.

130702725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

130702725 is a deficient number, since it is larger than the sum of its proper divisors (103400781).

130702725 is a wasteful number, since it uses less digits than its factorization.

130702725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 580917 (or 580909 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 27.

The square root of 130702725 is about 11432.5292477212. The cubic root of 130702725 is about 507.4908473035.

Adding to 130702725 its reverse (527207031), we get a palindrome (657909756).

The spelling of 130702725 in words is "one hundred thirty million, seven hundred two thousand, seven hundred twenty-five".

Divisors: 1 3 5 9 15 25 45 75 225 580901 1742703 2904505 5228109 8713515 14522525 26140545 43567575 130702725