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53064621 = 3213743037
BaseRepresentation
bin1100101001101…
…1001110101101
310200211221222100
43022123032231
5102041031441
65133205313
71213020231
oct312331655
9120757870
1053064621
1127a54265
1215930839
13acbc2ac
1470945c1
1549d2cb6
hex329b3ad

53064621 has 12 divisors (see below), whose sum is σ = 77210172. Its totient is φ = 35117376.

The previous prime is 53064593. The next prime is 53064629. The reversal of 53064621 is 12646035.

53064621 is a `hidden beast` number, since 5 + 30 + 6 + 4 + 621 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 11655396 + 41409225 = 3414^2 + 6435^2 .

It is not a de Polignac number, because 53064621 - 27 = 53064493 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53064629) 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, 20286 + ... + 22751.

It is an arithmetic number, because the mean of its divisors is an integer number (6434181).

Almost surely, 253064621 is an apocalyptic number.

It is an amenable number.

53064621 is a deficient number, since it is larger than the sum of its proper divisors (24145551).

53064621 is a wasteful number, since it uses less digits than its factorization.

53064621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43180 (or 43177 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 53064621 is about 7284.5467257750. The cubic root of 53064621 is about 375.7811769038.

The spelling of 53064621 in words is "fifty-three million, sixty-four thousand, six hundred twenty-one".

Divisors: 1 3 9 137 411 1233 43037 129111 387333 5896069 17688207 53064621