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51297130130 = 255129713013
BaseRepresentation
bin101111110001100011…
…000001011010010010
311220101222121012122112
4233301203001122102
51320024031131010
635322055305322
73464122261151
oct576143013222
9156358535575
1051297130130
111a833990124
129b3737b242
134ab671164c
1426a8b05598
1515036b9a05
hexbf18c1692

51297130130 has 8 divisors (see below), whose sum is σ = 92334834252. Its totient is φ = 20518852048.

The previous prime is 51297130091. The next prime is 51297130133. The reversal of 51297130130 is 3103179215.

It can be written as a sum of positive squares in 2 ways, for example, as 51288207961 + 8922169 = 226469^2 + 2987^2 .

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 (51297130133) 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 3 ways as a sum of consecutive naturals, for example, 2564856497 + ... + 2564856516.

Almost surely, 251297130130 is an apocalyptic number.

51297130130 is a deficient number, since it is larger than the sum of its proper divisors (41037704122).

51297130130 is a wasteful number, since it uses less digits than its factorization.

51297130130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5129713020.

The product of its (nonzero) digits is 5670, while the sum is 32.

The spelling of 51297130130 in words is "fifty-one billion, two hundred ninety-seven million, one hundred thirty thousand, one hundred thirty".

Divisors: 1 2 5 10 5129713013 10259426026 25648565065 51297130130