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53008407 = 3246312721
BaseRepresentation
bin1100101000110…
…1100000010111
310200202002212100
43022031200113
5102032232112
65132053143
71212364314
oct312154027
9120662770
1053008407
1127a16001
12159041b3
13ac9c82a
14707bd0b
1549c12dc
hex328d817

53008407 has 12 divisors (see below), whose sum is σ = 76739104. Its totient is φ = 35259840.

The previous prime is 53008393. The next prime is 53008409. The reversal of 53008407 is 70480035.

It is not a de Polignac number, because 53008407 - 26 = 53008343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53008409) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2194 + ... + 10527.

Almost surely, 253008407 is an apocalyptic number.

53008407 is a deficient number, since it is larger than the sum of its proper divisors (23730697).

53008407 is a wasteful number, since it uses less digits than its factorization.

53008407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13190 (or 13187 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 53008407 is about 7280.6872615159. The cubic root of 53008407 is about 375.6484354377.

The spelling of 53008407 in words is "fifty-three million, eight thousand, four hundred seven".

Divisors: 1 3 9 463 1389 4167 12721 38163 114489 5889823 17669469 53008407