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52800400800 = 2535527223241
BaseRepresentation
bin110001001011001001…
…100010110110100000
312001021202021021100000
4301023021202312200
51331113400311200
640131155500000
73546305000400
oct611311426640
9161252237300
1052800400800
11204354a4684
12a2968b7600
134c95caa514
1427ac61a800
15159065d300
hexc4b262da0

52800400800 has 1296 divisors, whose sum is σ = 235345061952. Its totient is φ = 11496038400.

The previous prime is 52800400789. The next prime is 52800400841. The reversal of 52800400800 is 800400825.

It is a tau number, because it is divible by the number of its divisors (1296).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 215 ways as a sum of consecutive naturals, for example, 219088680 + ... + 219088920.

It is an arithmetic number, because the mean of its divisors is an integer number (181593412).

Almost surely, 252800400800 is an apocalyptic number.

52800400800 is a gapful number since it is divisible by the number (50) 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 52800400800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117672530976).

52800400800 is an abundant number, since it is smaller than the sum of its proper divisors (182544661152).

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

52800400800 is a wasteful number, since it uses less digits than its factorization.

52800400800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313 (or 281 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

The spelling of 52800400800 in words is "fifty-two billion, eight hundred million, four hundred thousand, eight hundred".