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130525870 = 2513052587
BaseRepresentation
bin1111100011110…
…10101010101110
3100002121101211111
413301322222232
5231403311440
620541342234
73143310616
oct761725256
9302541744
10130525870
1167751022
123786797a
1321070c57
1413499a46
15b6d44ea
hex7c7aaae

130525870 has 8 divisors (see below), whose sum is σ = 234946584. Its totient is φ = 52210344.

The previous prime is 130525859. The next prime is 130525979. The reversal of 130525870 is 78525031.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6526284 + ... + 6526303.

It is an arithmetic number, because the mean of its divisors is an integer number (29368323).

Almost surely, 2130525870 is an apocalyptic number.

130525870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

130525870 is a deficient number, since it is larger than the sum of its proper divisors (104420714).

130525870 is a wasteful number, since it uses less digits than its factorization.

130525870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13052594.

The product of its (nonzero) digits is 8400, while the sum is 31.

The square root of 130525870 is about 11424.7919018247. The cubic root of 130525870 is about 507.2618472175.

The spelling of 130525870 in words is "one hundred thirty million, five hundred twenty-five thousand, eight hundred seventy".

Divisors: 1 2 5 10 13052587 26105174 65262935 130525870