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53531412 = 22311405541
BaseRepresentation
bin1100110000110…
…1001100010100
310201201200021220
43030031030110
5102201001122
65151210340
71220003154
oct314151424
9121650256
1053531412
1128242a40
1215b169b0
13b1238bc
147176764
154a7625c
hex330d314

53531412 has 24 divisors (see below), whose sum is σ = 136262112. Its totient is φ = 16221600.

The previous prime is 53531407. The next prime is 53531437. The reversal of 53531412 is 21413535.

It is a super-2 number, since 2×535314122 = 5731224141427488, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 202639 + ... + 202902.

It is an arithmetic number, because the mean of its divisors is an integer number (5677588).

Almost surely, 253531412 is an apocalyptic number.

It is an amenable number.

53531412 is an abundant number, since it is smaller than the sum of its proper divisors (82730700).

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

53531412 is a wasteful number, since it uses less digits than its factorization.

53531412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405559 (or 405557 counting only the distinct ones).

The product of its digits is 1800, while the sum is 24.

The square root of 53531412 is about 7316.5163841818. The cubic root of 53531412 is about 376.8798337430.

Adding to 53531412 its reverse (21413535), we get a palindrome (74944947).

The spelling of 53531412 in words is "fifty-three million, five hundred thirty-one thousand, four hundred twelve".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 405541 811082 1216623 1622164 2433246 4460951 4866492 8921902 13382853 17843804 26765706 53531412