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53297853 = 372987517
BaseRepresentation
bin1100101101010…
…0001010111101
310201021210220120
43023110022331
5102121012403
65142205153
71215011220
oct313241275
9121253816
1053297853
11280a3514
1215a237b9
13b0714bb
1471155b7
154a2be53
hex32d42bd

53297853 has 16 divisors (see below), whose sum is σ = 84017280. Its totient is φ = 29405376.

The previous prime is 53297843. The next prime is 53297861. The reversal of 53297853 is 35879235.

It is not a de Polignac number, because 53297853 - 24 = 53297837 is a prime.

It is a super-2 number, since 2×532978532 = 5681322268819218, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53297813) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43150 + ... + 44367.

It is an arithmetic number, because the mean of its divisors is an integer number (5251080).

Almost surely, 253297853 is an apocalyptic number.

It is an amenable number.

53297853 is a deficient number, since it is larger than the sum of its proper divisors (30719427).

53297853 is a wasteful number, since it uses less digits than its factorization.

53297853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87556.

The product of its digits is 226800, while the sum is 42.

The square root of 53297853 is about 7300.5378568979. The cubic root of 53297853 is about 376.3309223558.

The spelling of 53297853 in words is "fifty-three million, two hundred ninety-seven thousand, eight hundred fifty-three".

Divisors: 1 3 7 21 29 87 203 609 87517 262551 612619 1837857 2537993 7613979 17765951 53297853