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51751004052 = 22311392053061
BaseRepresentation
bin110000001100100110…
…011010011110010100
311221120121122101121210
4300030212122132110
51321441224112202
635435111341420
73511303163556
oct601446323624
9157517571553
1051751004052
111aa47102340
12a043381870
134b597666b7
14270d0d14d6
15152d470c6c
hexc0c99a794

51751004052 has 24 divisors (see below), whose sum is σ = 131729828832. Its totient is φ = 15682122400.

The previous prime is 51751004021. The next prime is 51751004057. The reversal of 51751004052 is 25040015715.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51751004057) 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, 196026399 + ... + 196026662.

It is an arithmetic number, because the mean of its divisors is an integer number (5488742868).

Almost surely, 251751004052 is an apocalyptic number.

It is an amenable number.

51751004052 is an abundant number, since it is smaller than the sum of its proper divisors (79978824780).

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

51751004052 is a wasteful number, since it uses less digits than its factorization.

51751004052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392053079 (or 392053077 counting only the distinct ones).

The product of its (nonzero) digits is 7000, while the sum is 30.

Adding to 51751004052 its reverse (25040015715), we get a palindrome (76791019767).

The spelling of 51751004052 in words is "fifty-one billion, seven hundred fifty-one million, four thousand, fifty-two".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 392053061 784106122 1176159183 1568212244 2352318366 4312583671 4704636732 8625167342 12937751013 17250334684 25875502026 51751004052