Search a number
-
+
51348710056 = 2372999305749
BaseRepresentation
bin101111110100100111…
…110010001010101000
311220112120122202000011
4233310213302022220
51320130232210211
635331141021304
73465316556020
oct576447621250
9156476582004
1051348710056
111a86000a966
129b506b4834
134ac4300c07
1426b18d0a80
151507ea7921
hexbf49f22a8

51348710056 has 32 divisors (see below), whose sum is σ = 110070000000. Its totient is φ = 21999180096.

The previous prime is 51348710029. The next prime is 51348710087. The reversal of 51348710056 is 65001784315.

It is a happy 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 7 ways as a sum of consecutive naturals, for example, 15070 + ... + 320818.

It is an arithmetic number, because the mean of its divisors is an integer number (3439687500).

Almost surely, 251348710056 is an apocalyptic number.

51348710056 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

51348710056 is an abundant number, since it is smaller than the sum of its proper divisors (58721289944).

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

51348710056 is a wasteful number, since it uses less digits than its factorization.

51348710056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308761 (or 308757 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 40.

The spelling of 51348710056 in words is "fifty-one billion, three hundred forty-eight million, seven hundred ten thousand, fifty-six".

Divisors: 1 2 4 7 8 14 28 56 2999 5998 11996 20993 23992 41986 83972 167944 305749 611498 1222996 2140243 2445992 4280486 8560972 17121944 916941251 1833882502 3667765004 6418588757 7335530008 12837177514 25674355028 51348710056