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52789653840 = 243571110128283
BaseRepresentation
bin110001001010100000…
…100011000101010000
312001021000001021021110
4301022200203011100
51331103122410330
640130133253320
73546114440220
oct611240430520
9161230037243
1052789653840
112042a4242a0
12a293194240
134c939b6981
1427ab020080
15158e738db0
hexc4a823150

52789653840 has 320 divisors, whose sum is σ = 206055954432. Its totient is φ = 10860288000.

The previous prime is 52789653811. The next prime is 52789653881. The reversal of 52789653840 is 4835698725.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1852339 + ... + 1880621.

Almost surely, 252789653840 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 52789653840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103027977216).

52789653840 is an abundant number, since it is smaller than the sum of its proper divisors (153266300592).

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

52789653840 is a wasteful number, since it uses less digits than its factorization.

52789653840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28418 (or 28412 counting only the distinct ones).

The product of its (nonzero) digits is 14515200, while the sum is 57.

The spelling of 52789653840 in words is "fifty-two billion, seven hundred eighty-nine million, six hundred fifty-three thousand, eight hundred forty".