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130561610 = 2513056161
BaseRepresentation
bin1111100100000…
…11011001001010
3100002200012212012
413302003121022
5231410432420
620542215522
73143520044
oct762033112
9302605765
10130561610
1167775963
12378845a2
13210842ba
14134a8a94
15b6dedc5
hex7c8364a

130561610 has 8 divisors (see below), whose sum is σ = 235010916. Its totient is φ = 52224640.

The previous prime is 130561609. The next prime is 130561619. The reversal of 130561610 is 16165031.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 119399329 + 11162281 = 10927^2 + 3341^2 .

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 (130561619) 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, 6528071 + ... + 6528090.

Almost surely, 2130561610 is an apocalyptic number.

130561610 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

130561610 is a deficient number, since it is larger than the sum of its proper divisors (104449306).

130561610 is a wasteful number, since it uses less digits than its factorization.

130561610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13056168.

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

The square root of 130561610 is about 11426.3559370431. The cubic root of 130561610 is about 507.3081417029.

The spelling of 130561610 in words is "one hundred thirty million, five hundred sixty-one thousand, six hundred ten".

Divisors: 1 2 5 10 13056161 26112322 65280805 130561610