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53394980 = 2256739847
BaseRepresentation
bin1100101110101…
…1111000100100
310201110202010212
43023223320210
5102132114410
65144234552
71215564332
oct313537044
9121422125
1053394980
112815a491
1215a6ba58
13b0a6782
14713cb52
154a4ab05
hex32ebe24

53394980 has 24 divisors (see below), whose sum is σ = 113805888. Its totient is φ = 21038688.

The previous prime is 53394973. The next prime is 53395007. The reversal of 53394980 is 8949335.

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, 18584 + ... + 21263.

It is an arithmetic number, because the mean of its divisors is an integer number (4741912).

Almost surely, 253394980 is an apocalyptic number.

It is an amenable number.

53394980 is an abundant number, since it is smaller than the sum of its proper divisors (60410908).

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

53394980 is a wasteful number, since it uses less digits than its factorization.

53394980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39923 (or 39921 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 41.

The square root of 53394980 is about 7307.1868732091. The cubic root of 53394980 is about 376.5593850457.

The spelling of 53394980 in words is "fifty-three million, three hundred ninety-four thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 67 134 268 335 670 1340 39847 79694 159388 199235 398470 796940 2669749 5339498 10678996 13348745 26697490 53394980