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51103630369 = 1141113311819
BaseRepresentation
bin101111100110000000…
…111000010000100001
311212220111111101212201
4233212000320100201
51314130012132434
635250544053201
73456252456001
oct574600702041
9155814441781
1051103630369
111a744737970
129aa2604201
134a855c1c4c
14268b136001
1514e16e6614
hexbe6038421

51103630369 has 8 divisors (see below), whose sum is σ = 57109157280. Its totient is φ = 45324727200.

The previous prime is 51103630297. The next prime is 51103630387. The reversal of 51103630369 is 96303630115.

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 51103630369 - 223 = 51095241761 is a prime.

It is a super-2 number, since 2×511036303692 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51103630069) 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, 56655459 + ... + 56656360.

It is an arithmetic number, because the mean of its divisors is an integer number (7138644660).

Almost surely, 251103630369 is an apocalyptic number.

It is an amenable number.

51103630369 is a deficient number, since it is larger than the sum of its proper divisors (6005526911).

51103630369 is a wasteful number, since it uses less digits than its factorization.

51103630369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113311871.

The product of its (nonzero) digits is 43740, while the sum is 37.

It can be divided in two parts, 51103 and 630369, that added together give a cube (681472 = 883).

The spelling of 51103630369 in words is "fifty-one billion, one hundred three million, six hundred thirty thousand, three hundred sixty-nine".

Divisors: 1 11 41 451 113311819 1246430009 4645784579 51103630369