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130361621 = 1359349487
BaseRepresentation
bin1111100010100…
…10100100010101
3100002022001112012
413301102210111
5231333032441
620534034005
73142025015
oct761224425
9302261465
10130361621
1167649685
12377a8905
1321014270
1413455c45
15b6a09eb
hex7c52915

130361621 has 16 divisors (see below), whose sum is σ = 143472000. Its totient is φ = 117713088.

The previous prime is 130361573. The next prime is 130361687. The reversal of 130361621 is 126163031.

130361621 = T228 + T229 + ... + T925.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 130361621 - 26 = 130361557 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 (130361521) 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 15 ways as a sum of consecutive naturals, for example, 267440 + ... + 267926.

It is an arithmetic number, because the mean of its divisors is an integer number (8967000).

Almost surely, 2130361621 is an apocalyptic number.

It is an amenable number.

130361621 is a deficient number, since it is larger than the sum of its proper divisors (13110379).

130361621 is a wasteful number, since it uses less digits than its factorization.

130361621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 908.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 130361621 is about 11417.6013680633. The cubic root of 130361621 is about 507.0489846297.

The spelling of 130361621 in words is "one hundred thirty million, three hundred sixty-one thousand, six hundred twenty-one".

Divisors: 1 13 59 349 487 767 4537 6331 20591 28733 169963 267683 373529 2209519 10027817 130361621