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130402570 = 2513040257
BaseRepresentation
bin1111100010111…
…00100100001010
3100002101010200211
413301130210022
5231340340240
620534551334
73142255264
oct761344412
9302333624
10130402570
1167677421
123780854a
1321029aac
1413466b34
15b6acbea
hex7c5c90a

130402570 has 8 divisors (see below), whose sum is σ = 234724644. Its totient is φ = 52161024.

The previous prime is 130402553. The next prime is 130402579. The reversal of 130402570 is 75204031.

It can be written as a sum of positive squares in 2 ways, for example, as 119924401 + 10478169 = 10951^2 + 3237^2 .

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

It is not an unprimeable number, because it can be changed into a prime (130402579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6520119 + ... + 6520138.

Almost surely, 2130402570 is an apocalyptic number.

130402570 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

130402570 is a deficient number, since it is larger than the sum of its proper divisors (104322074).

130402570 is a wasteful number, since it uses less digits than its factorization.

130402570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13040264.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 130402570 is about 11419.3944673087. The cubic root of 130402570 is about 507.1020702313.

The spelling of 130402570 in words is "one hundred thirty million, four hundred two thousand, five hundred seventy".

Divisors: 1 2 5 10 13040257 26080514 65201285 130402570