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51370071320 = 2351284251783
BaseRepresentation
bin101111110101111001…
…010001010100011000
311220121001212000011002
4233311321101110120
51320201214240240
635333222524132
73465666254531
oct576571212430
9156531760132
1051370071320
111a87107a9a7
129b57896648
134ac886cb09
1426b4691688
151509cc6d15
hexbf5e51518

51370071320 has 16 divisors (see below), whose sum is σ = 115582660560. Its totient is φ = 20548028512.

The previous prime is 51370071307. The next prime is 51370071331. The reversal of 51370071320 is 2317007315.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 642125852 + ... + 642125931.

It is an arithmetic number, because the mean of its divisors is an integer number (7223916285).

Almost surely, 251370071320 is an apocalyptic number.

It is an amenable number.

51370071320 is an abundant number, since it is smaller than the sum of its proper divisors (64212589240).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51370071320 is a wasteful number, since it uses less digits than its factorization.

51370071320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1284251794 (or 1284251790 counting only the distinct ones).

The product of its (nonzero) digits is 4410, while the sum is 29.

Adding to 51370071320 its reverse (2317007315), we get a palindrome (53687078635).

The spelling of 51370071320 in words is "fifty-one billion, three hundred seventy million, seventy-one thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 1284251783 2568503566 5137007132 6421258915 10274014264 12842517830 25685035660 51370071320