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53879481 = 325986609
BaseRepresentation
bin1100110110001…
…0001010111001
310202101100202100
43031202022321
5102243120411
65202454013
71222653015
oct315421271
9122340670
1053879481
11284604a7
1216064309
13b216166
147227545
154ae4456
hex33622b9

53879481 has 6 divisors (see below), whose sum is σ = 77825930. Its totient is φ = 35919648.

The previous prime is 53879479. The next prime is 53879503. The reversal of 53879481 is 18497835.

53879481 is a `hidden beast` number, since 538 + 79 + 48 + 1 = 666.

53879481 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 only one way, i.e., 38007225 + 15872256 = 6165^2 + 3984^2 .

It is not a de Polignac number, because 53879481 - 21 = 53879479 is a prime.

It is a super-2 number, since 2×538794812 = 5805996945658722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53879431) 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 5 ways as a sum of consecutive naturals, for example, 2993296 + ... + 2993313.

Almost surely, 253879481 is an apocalyptic number.

It is an amenable number.

53879481 is a deficient number, since it is larger than the sum of its proper divisors (23946449).

53879481 is a wasteful number, since it uses less digits than its factorization.

53879481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5986615 (or 5986612 counting only the distinct ones).

The product of its digits is 241920, while the sum is 45.

The square root of 53879481 is about 7340.2643685361. The cubic root of 53879481 is about 377.6949121368.

The spelling of 53879481 in words is "fifty-three million, eight hundred seventy-nine thousand, four hundred eighty-one".

Divisors: 1 3 9 5986609 17959827 53879481