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53351382 = 2371270271
BaseRepresentation
bin1100101110000…
…1001111010110
310201101112100010
43023201033112
5102124221012
65143301050
71215323250
oct313411726
9121345303
1053351382
112812a757
1215a4a786
13b08c986
14712acd0
154a3cc3c
hex32e13d6

53351382 has 16 divisors (see below), whose sum is σ = 121946112. Its totient is φ = 15243240.

The previous prime is 53351369. The next prime is 53351383. The reversal of 53351382 is 28315335.

It is a super-2 number, since 2×533513822 = 5692739922619848, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53351383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 635094 + ... + 635177.

It is an arithmetic number, because the mean of its divisors is an integer number (7621632).

Almost surely, 253351382 is an apocalyptic number.

53351382 is an abundant number, since it is smaller than the sum of its proper divisors (68594730).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53351382 is a wasteful number, since it uses less digits than its factorization.

53351382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1270283.

The product of its digits is 10800, while the sum is 30.

The square root of 53351382 is about 7304.2030366084. The cubic root of 53351382 is about 376.4568678775.

It can be divided in two parts, 533 and 51382, that added together give a palindrome (51915).

The spelling of 53351382 in words is "fifty-three million, three hundred fifty-one thousand, three hundred eighty-two".

Divisors: 1 2 3 6 7 14 21 42 1270271 2540542 3810813 7621626 8891897 17783794 26675691 53351382