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52897900 = 225211192531
BaseRepresentation
bin1100100111001…
…0100001101100
310200112111021111
43021302201230
5102020213100
65125441404
71211424166
oct311624154
9120474244
1052897900
112794aa80
1215870264
13ac61443
14704d936
15499d6ba
hex327286c

52897900 has 72 divisors (see below), whose sum is σ = 131866560. Its totient is φ = 18216000.

The previous prime is 52897877. The next prime is 52897903. The reversal of 52897900 is 979825.

It is not an unprimeable number, because it can be changed into a prime (52897903) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19635 + ... + 22165.

It is an arithmetic number, because the mean of its divisors is an integer number (1831480).

Almost surely, 252897900 is an apocalyptic number.

52897900 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 52897900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65933280).

52897900 is an abundant number, since it is smaller than the sum of its proper divisors (78968660).

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

52897900 is a wasteful number, since it uses less digits than its factorization.

52897900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2575 (or 2568 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 40.

The square root of 52897900 is about 7273.0942521048. The cubic root of 52897900 is about 375.3872148496.

The spelling of 52897900 in words is "fifty-two million, eight hundred ninety-seven thousand, nine hundred".

Divisors: 1 2 4 5 10 11 19 20 22 25 38 44 50 55 76 95 100 110 190 209 220 275 380 418 475 550 836 950 1045 1100 1900 2090 2531 4180 5062 5225 10124 10450 12655 20900 25310 27841 48089 50620 55682 63275 96178 111364 126550 139205 192356 240445 253100 278410 480890 528979 556820 696025 961780 1057958 1202225 1392050 2115916 2404450 2644895 2784100 4808900 5289790 10579580 13224475 26448950 52897900