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51357629361 = 323744313469
BaseRepresentation
bin101111110101001001…
…110011101110110001
311220120012102212222210
4233311021303232301
51320140023114421
635332100122333
73465455434563
oct576511635661
9156505385883
1051357629361
111a865052095
129b536963a9
134ac61048cc
1426b2b73333
151508b6a576
hexbf5273bb1

51357629361 has 8 divisors (see below), whose sum is σ = 71454093120. Its totient is φ = 32749792592.

The previous prime is 51357629321. The next prime is 51357629363. The reversal of 51357629361 is 16392675315.

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

It is a cyclic number.

It is not a de Polignac number, because 51357629361 - 231 = 49210145713 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51357629361.

It is not an unprimeable number, because it can be changed into a prime (51357629363) 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, 372156666 + ... + 372156803.

It is an arithmetic number, because the mean of its divisors is an integer number (8931761640).

Almost surely, 251357629361 is an apocalyptic number.

It is an amenable number.

51357629361 is a deficient number, since it is larger than the sum of its proper divisors (20096463759).

51357629361 is a wasteful number, since it uses less digits than its factorization.

51357629361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 744313495.

The product of its digits is 1020600, while the sum is 48.

The spelling of 51357629361 in words is "fifty-one billion, three hundred fifty-seven million, six hundred twenty-nine thousand, three hundred sixty-one".

Divisors: 1 3 23 69 744313469 2232940407 17119209787 51357629361