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53074845 = 36514561
BaseRepresentation
bin1100101001110…
…1101110011101
310200212111000000
43022131232131
5102041343340
65133324513
71213062105
oct312355635
9120774000
1053074845
1127a60a0a
1215936739
13acc3b45
147098205
1549d5d30
hex329db9d

53074845 has 28 divisors (see below), whose sum is σ = 95497596. Its totient is φ = 28304640.

The previous prime is 53074841. The next prime is 53074877. The reversal of 53074845 is 54847035.

It can be written as a sum of positive squares in 2 ways, for example, as 34644996 + 18429849 = 5886^2 + 4293^2 .

It is not a de Polignac number, because 53074845 - 22 = 53074841 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53074841) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 3636 + ... + 10925.

Almost surely, 253074845 is an apocalyptic number.

It is an amenable number.

53074845 is a deficient number, since it is larger than the sum of its proper divisors (42422751).

53074845 is an equidigital number, since it uses as much as digits as its factorization.

53074845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14584 (or 14569 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 36.

The square root of 53074845 is about 7285.2484514943. The cubic root of 53074845 is about 375.8053093669.

The spelling of 53074845 in words is "fifty-three million, seventy-four thousand, eight hundred forty-five".

Divisors: 1 3 5 9 15 27 45 81 135 243 405 729 1215 3645 14561 43683 72805 131049 218415 393147 655245 1179441 1965735 3538323 5897205 10614969 17691615 53074845