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53933380 = 2252696669
BaseRepresentation
bin1100110110111…
…1010101000100
310202111002200121
43031233111010
5102301332010
65203551324
71223266114
oct315572504
9122432617
1053933380
1128497a46
121608b544
13b234857
14723d044
154b053da
hex336f544

53933380 has 12 divisors (see below), whose sum is σ = 113260140. Its totient is φ = 21573344.

The previous prime is 53933371. The next prime is 53933387. The reversal of 53933380 is 8333935.

It can be written as a sum of positive squares in 2 ways, for example, as 39538944 + 14394436 = 6288^2 + 3794^2 .

It is not an unprimeable number, because it can be changed into a prime (53933387) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1348315 + ... + 1348354.

It is an arithmetic number, because the mean of its divisors is an integer number (9438345).

Almost surely, 253933380 is an apocalyptic number.

It is an amenable number.

53933380 is an abundant number, since it is smaller than the sum of its proper divisors (59326760).

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

53933380 is a wasteful number, since it uses less digits than its factorization.

53933380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2696678 (or 2696676 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 34.

The square root of 53933380 is about 7343.9349125656. The cubic root of 53933380 is about 377.8208140770.

The spelling of 53933380 in words is "fifty-three million, nine hundred thirty-three thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 2696669 5393338 10786676 13483345 26966690 53933380