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53912457 = 3217352369
BaseRepresentation
bin1100110110101…
…0001110001001
310202110000222200
43031222032021
5102300144312
65203310413
71223151114
oct315521611
9122400880
1053912457
1128483255
121607b409
13b228181
14723557b
154aee0dc
hex336a389

53912457 has 12 divisors (see below), whose sum is σ = 82454580. Its totient is φ = 33827328.

The previous prime is 53912429. The next prime is 53912461. The reversal of 53912457 is 75421935.

53912457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 26255376 + 27657081 = 5124^2 + 5259^2 .

It is not a de Polignac number, because 53912457 - 215 = 53879689 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53912407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 176032 + ... + 176337.

It is an arithmetic number, because the mean of its divisors is an integer number (6871215).

Almost surely, 253912457 is an apocalyptic number.

It is an amenable number.

53912457 is a deficient number, since it is larger than the sum of its proper divisors (28542123).

53912457 is a wasteful number, since it uses less digits than its factorization.

53912457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352392 (or 352389 counting only the distinct ones).

The product of its digits is 37800, while the sum is 36.

The square root of 53912457 is about 7342.5102655699. The cubic root of 53912457 is about 377.7719502914.

It can be divided in two parts, 539 and 12457, that added together give a square (12996 = 1142).

The spelling of 53912457 in words is "fifty-three million, nine hundred twelve thousand, four hundred fifty-seven".

Divisors: 1 3 9 17 51 153 352369 1057107 3171321 5990273 17970819 53912457