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53381335 = 572534111
BaseRepresentation
bin1100101110100…
…0100011010111
310201110001102111
43023220203113
5102131200320
65144051451
71215506500
oct313504327
9121401374
1053381335
1128150207
1215a63b87
13b0a04b7
147137ba7
154a46a5a
hex32e88d7

53381335 has 24 divisors (see below), whose sum is σ = 75940416. Its totient is φ = 35904960.

The previous prime is 53381329. The next prime is 53381351. The reversal of 53381335 is 53318335.

It is not a de Polignac number, because 53381335 - 213 = 53373143 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53381297 and 53381306.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10930 + ... + 15040.

It is an arithmetic number, because the mean of its divisors is an integer number (3164184).

Almost surely, 253381335 is an apocalyptic number.

53381335 is a deficient number, since it is larger than the sum of its proper divisors (22559081).

53381335 is a wasteful number, since it uses less digits than its factorization.

53381335 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4183 (or 4176 counting only the distinct ones).

The product of its digits is 16200, while the sum is 31.

The square root of 53381335 is about 7306.2531437119. The cubic root of 53381335 is about 376.5273059341.

The spelling of 53381335 in words is "fifty-three million, three hundred eighty-one thousand, three hundred thirty-five".

Divisors: 1 5 7 35 49 53 245 265 371 1855 2597 4111 12985 20555 28777 143885 201439 217883 1007195 1089415 1525181 7625905 10676267 53381335