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623053872 = 2432731127157
BaseRepresentation
bin100101001000110…
…000110000110000
31121102101102020100
4211020300300300
52234000210442
6141454112400
721303604410
oct4510606060
91542342210
10623053872
1129a774661
121547ab700
139c10b03c
145ca68640
1539a7384c
hex25230c30

623053872 has 240 divisors, whose sum is σ = 2086469632. Its totient is φ = 169827840.

The previous prime is 623053867. The next prime is 623053889. The reversal of 623053872 is 278350326.

It is a super-2 number, since 2×6230538722 = 776392254828384768, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3968418 + ... + 3968574.

Almost surely, 2623053872 is an apocalyptic number.

623053872 is a gapful number since it is divisible by the number (62) 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 623053872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1043234816).

623053872 is an abundant number, since it is smaller than the sum of its proper divisors (1463415760).

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

623053872 is a wasteful number, since it uses less digits than its factorization.

623053872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336 (or 327 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 623053872 is about 24961.0470934214. The cubic root of 623053872 is about 854.0996287704.

The spelling of 623053872 in words is "six hundred twenty-three million, fifty-three thousand, eight hundred seventy-two".