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52620645792 = 2531113337613
BaseRepresentation
bin110001000000011011…
…110101010110100000
312000211020000202211010
4301000123311112200
51330231341131132
640101255020520
73541663052331
oct610033652640
9160736022733
1052620645792
1120352a8a020
12a24666a740
134c67991000
1427927c8288
15157e9a26cc
hexc406f55a0

52620645792 has 384 divisors, whose sum is σ = 167923203840. Its totient is φ = 14297886720.

The previous prime is 52620645767. The next prime is 52620645799. The reversal of 52620645792 is 29754602625.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (52620645799) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 85840878 + ... + 85841490.

It is an arithmetic number, because the mean of its divisors is an integer number (437300010).

Almost surely, 252620645792 is an apocalyptic number.

52620645792 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52620645792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83961601920).

52620645792 is an abundant number, since it is smaller than the sum of its proper divisors (115302558048).

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

52620645792 is a wasteful number, since it uses less digits than its factorization.

52620645792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 713 (or 679 counting only the distinct ones).

The product of its (nonzero) digits is 1814400, while the sum is 48.

The spelling of 52620645792 in words is "fifty-two billion, six hundred twenty million, six hundred forty-five thousand, seven hundred ninety-two".