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53332830 = 234565843
BaseRepresentation
bin1100101101110…
…0101101011110
310201100120220000
43023130231132
5102123122310
65143035130
71215215205
oct313345536
9121316800
1053332830
1128117821
1215a3baa6
13b0843b5
14712423c
154a374c0
hex32dcb5e

53332830 has 40 divisors (see below), whose sum is σ = 143408232. Its totient is φ = 14221872.

The previous prime is 53332823. The next prime is 53332843. The reversal of 53332830 is 3823335.

It is a happy number.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 53332794 and 53332803.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 32112 + ... + 33731.

Almost surely, 253332830 is an apocalyptic number.

53332830 is an abundant number, since it is smaller than the sum of its proper divisors (90075402).

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

53332830 is a wasteful number, since it uses less digits than its factorization.

53332830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65862 (or 65853 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 27.

The square root of 53332830 is about 7302.9329724433. The cubic root of 53332830 is about 376.4132274117.

The spelling of 53332830 in words is "fifty-three million, three hundred thirty-two thousand, eight hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 27 30 45 54 81 90 135 162 270 405 810 65843 131686 197529 329215 395058 592587 658430 987645 1185174 1777761 1975290 2962935 3555522 5333283 5925870 8888805 10666566 17777610 26666415 53332830