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51542851045 = 571472652887
BaseRepresentation
bin110000000000001100…
…010111110111100101
311221001002222010101011
4300000030113313211
51321024432213140
635402314102221
73503165001520
oct600014276745
9157032863334
1051542851045
111a94a660964
129ba571a971
134b255b643a
1426cd5c9bb7
15151a055cea
hexc00317de5

51542851045 has 8 divisors (see below), whose sum is σ = 70687338624. Its totient is φ = 35343669264.

The previous prime is 51542851001. The next prime is 51542851051. The reversal of 51542851045 is 54015824515.

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 51542851045 - 27 = 51542850917 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51542850989 and 51542851007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 736326409 + ... + 736326478.

It is an arithmetic number, because the mean of its divisors is an integer number (8835917328).

Almost surely, 251542851045 is an apocalyptic number.

It is an amenable number.

51542851045 is a deficient number, since it is larger than the sum of its proper divisors (19144487579).

51542851045 is a wasteful number, since it uses less digits than its factorization.

51542851045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1472652899.

The product of its (nonzero) digits is 160000, while the sum is 40.

The spelling of 51542851045 in words is "fifty-one billion, five hundred forty-two million, eight hundred fifty-one thousand, forty-five".

Divisors: 1 5 7 35 1472652887 7363264435 10308570209 51542851045