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130042551 = 3311398307
BaseRepresentation
bin1111100000001…
…00101010110111
3100001200211211210
413300010222313
5231242330201
620523132503
73136225542
oct760045267
9301624753
10130042551
1167450991
1237674133
1320c31c72
14133b1859
15b63b1d6
hex7c04ab7

130042551 has 8 divisors (see below), whose sum is σ = 178983424. Its totient is φ = 83898360.

The previous prime is 130042513. The next prime is 130042553. The reversal of 130042551 is 155240031.

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

It is not a de Polignac number, because 130042551 - 26 = 130042487 is a prime.

It is a super-2 number, since 2×1300425512 = 33822130141175202, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130042553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 699061 + ... + 699246.

It is an arithmetic number, because the mean of its divisors is an integer number (22372928).

Almost surely, 2130042551 is an apocalyptic number.

130042551 is a deficient number, since it is larger than the sum of its proper divisors (48940873).

130042551 is a wasteful number, since it uses less digits than its factorization.

130042551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1398341.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 130042551 is about 11403.6200831140. The cubic root of 130042551 is about 506.6349663242.

Adding to 130042551 its reverse (155240031), we get a palindrome (285282582).

The spelling of 130042551 in words is "one hundred thirty million, forty-two thousand, five hundred fifty-one".

Divisors: 1 3 31 93 1398307 4194921 43347517 130042551