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52537992 = 23313168391
BaseRepresentation
bin1100100001101…
…0101010001000
310122212012120120
43020122222020
5101422203432
65114023240
71205364663
oct310325210
9118765516
1052537992
1127724631
1215717b20
13ab66690
146d986da
15492bc2c
hex321aa88

52537992 has 32 divisors (see below), whose sum is σ = 141449280. Its totient is φ = 16165440.

The previous prime is 52537987. The next prime is 52538011. The reversal of 52537992 is 29973525.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83884 + ... + 84507.

It is an arithmetic number, because the mean of its divisors is an integer number (4420290).

Almost surely, 252537992 is an apocalyptic number.

52537992 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

52537992 is an abundant number, since it is smaller than the sum of its proper divisors (88911288).

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

52537992 is a wasteful number, since it uses less digits than its factorization.

52537992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168413 (or 168409 counting only the distinct ones).

The product of its digits is 170100, while the sum is 42.

The square root of 52537992 is about 7248.3095960369. The cubic root of 52537992 is about 374.5339205153.

The spelling of 52537992 in words is "fifty-two million, five hundred thirty-seven thousand, nine hundred ninety-two".

Divisors: 1 2 3 4 6 8 12 13 24 26 39 52 78 104 156 312 168391 336782 505173 673564 1010346 1347128 2020692 2189083 4041384 4378166 6567249 8756332 13134498 17512664 26268996 52537992