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53492869 = 251213119
BaseRepresentation
bin1100110000001…
…1110010000101
310201122201102101
43030003302011
5102143232434
65150312101
71216452613
oct314036205
9121581371
1053492869
1128216a91
1215ab8631
13b10c1b1
1471666b3
154a69b14
hex3303c85

53492869 has 4 divisors (see below), whose sum is σ = 53706240. Its totient is φ = 53279500.

The previous prime is 53492837. The next prime is 53492893. The reversal of 53492869 is 96829435.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 96829435 = 519365887.

It is a cyclic number.

It is not a de Polignac number, because 53492869 - 25 = 53492837 is a prime.

It is a super-2 number, since 2×534928692 = 5722974067702322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53492069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106309 + ... + 106810.

It is an arithmetic number, because the mean of its divisors is an integer number (13426560).

Almost surely, 253492869 is an apocalyptic number.

It is an amenable number.

53492869 is a deficient number, since it is larger than the sum of its proper divisors (213371).

53492869 is a wasteful number, since it uses less digits than its factorization.

53492869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213370.

The product of its digits is 466560, while the sum is 46.

The square root of 53492869 is about 7313.8819377947. The cubic root of 53492869 is about 376.7893599658.

The spelling of 53492869 in words is "fifty-three million, four hundred ninety-two thousand, eight hundred sixty-nine".

Divisors: 1 251 213119 53492869