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53231469 = 371833011
BaseRepresentation
bin1100101100001…
…1111101101101
310201011102211220
43023003331231
5102111401334
65140533553
71214313534
oct313037555
9121142756
1053231469
1128058655
12159b12b9
13b04a215
1470d931b
154a17449
hex32c3f6d

53231469 has 16 divisors (see below), whose sum is σ = 72866304. Its totient is φ = 34554800.

The previous prime is 53231449. The next prime is 53231473. The reversal of 53231469 is 96413235.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-53231469 is a prime.

It is a super-2 number, since 2×532314692 = 5667178583795922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53231449) 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, 16174 + ... + 19184.

It is an arithmetic number, because the mean of its divisors is an integer number (4554144).

Almost surely, 253231469 is an apocalyptic number.

It is an amenable number.

53231469 is a deficient number, since it is larger than the sum of its proper divisors (19634835).

53231469 is a wasteful number, since it uses less digits than its factorization.

53231469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3168.

The product of its digits is 19440, while the sum is 33.

The square root of 53231469 is about 7295.9899259799. The cubic root of 53231469 is about 376.1746138005.

The spelling of 53231469 in words is "fifty-three million, two hundred thirty-one thousand, four hundred sixty-nine".

Divisors: 1 3 71 83 213 249 3011 5893 9033 17679 213781 249913 641343 749739 17743823 53231469