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130472621 = 4317317539
BaseRepresentation
bin1111100011011…
…01101010101101
3100002111200210022
413301231222231
5231400110441
620540251525
73142666436
oct761555255
9302450708
10130472621
1167715014
1237840ba5
1321052946
141348448d
15b6c384b
hex7c6daad

130472621 has 8 divisors (see below), whose sum is σ = 134286240. Its totient is φ = 126694512.

The previous prime is 130472599. The next prime is 130472623. The reversal of 130472621 is 126274031.

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

It is a de Polignac number, because none of the positive numbers 2k-130472621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130472623) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1331 + ... + 16208.

It is an arithmetic number, because the mean of its divisors is an integer number (16785780).

Almost surely, 2130472621 is an apocalyptic number.

It is an amenable number.

130472621 is a deficient number, since it is larger than the sum of its proper divisors (3813619).

130472621 is a wasteful number, since it uses less digits than its factorization.

130472621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17755.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 130472621 is about 11422.4612496607. The cubic root of 130472621 is about 507.1928574199.

The spelling of 130472621 in words is "one hundred thirty million, four hundred seventy-two thousand, six hundred twenty-one".

Divisors: 1 43 173 7439 17539 754177 3034247 130472621