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130057757 = 433024599
BaseRepresentation
bin1111100000010…
…00011000011101
3100001201121200222
413300020120131
5231243322012
620523331125
73136321064
oct760103035
9301647628
10130057757
1167461355
1237680aa5
1320c38b6b
14133b71db
15b640972
hex7c0861d

130057757 has 4 divisors (see below), whose sum is σ = 133082400. Its totient is φ = 127033116.

The previous prime is 130057727. The next prime is 130057777. The reversal of 130057757 is 757750031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 757750031 = 2413144191.

It is a cyclic number.

It is not a de Polignac number, because 130057757 - 210 = 130056733 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 (130057727) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1512257 + ... + 1512342.

It is an arithmetic number, because the mean of its divisors is an integer number (33270600).

Almost surely, 2130057757 is an apocalyptic number.

It is an amenable number.

130057757 is a deficient number, since it is larger than the sum of its proper divisors (3024643).

130057757 is an equidigital number, since it uses as much as digits as its factorization.

130057757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3024642.

The product of its (nonzero) digits is 25725, while the sum is 35.

The square root of 130057757 is about 11404.2867817326. The cubic root of 130057757 is about 506.6547126585.

The spelling of 130057757 in words is "one hundred thirty million, fifty-seven thousand, seven hundred fifty-seven".

Divisors: 1 43 3024599 130057757