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52012678144 = 210719596473
BaseRepresentation
bin110000011100001100…
…100111110000000000
311222020212000210222211
4300130030213300000
51323010221200034
635521100111504
73520631320030
oct603414476000
9158225023884
1052012678144
1120070889a19
12a0b6b35594
134b9ba3593b
142735b698c0
15154640dd64
hexc1c327c00

52012678144 has 176 divisors, whose sum is σ = 127221868800. Its totient is φ = 20756791296.

The previous prime is 52012678141. The next prime is 52012678153. The reversal of 52012678144 is 44187621025.

It is a super-2 number, since 2×520126781442 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 52012678097 and 52012678106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52012678141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8032092 + ... + 8038564.

Almost surely, 252012678144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52012678144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63610934400).

52012678144 is an abundant number, since it is smaller than the sum of its proper divisors (75209190656).

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

52012678144 is a wasteful number, since it uses less digits than its factorization.

52012678144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6578 (or 6560 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 40.

The spelling of 52012678144 in words is "fifty-two billion, twelve million, six hundred seventy-eight thousand, one hundred forty-four".