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53343213 = 3721122999
BaseRepresentation
bin1100101101111…
…1001111101101
310201101010010120
43023133033231
5102123440323
65143155153
71215260400
oct313371755
9121333116
1053343213
1128124600
1215a45ab9
13b089041
147127d37
154a3a5e3
hex32df3ed

53343213 has 36 divisors (see below), whose sum is σ = 90972000. Its totient is φ = 27701520.

The previous prime is 53343211. The next prime is 53343221. The reversal of 53343213 is 31234335.

It is a happy number.

It is not a de Polignac number, because 53343213 - 21 = 53343211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53343211) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 16288 + ... + 19286.

It is an arithmetic number, because the mean of its divisors is an integer number (2527000).

Almost surely, 253343213 is an apocalyptic number.

It is an amenable number.

53343213 is a deficient number, since it is larger than the sum of its proper divisors (37628787).

53343213 is a wasteful number, since it uses less digits than its factorization.

53343213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3038 (or 3020 counting only the distinct ones).

The product of its digits is 3240, while the sum is 24.

The square root of 53343213 is about 7303.6438166165. The cubic root of 53343213 is about 376.4376529231.

Adding to 53343213 its reverse (31234335), we get a palindrome (84577548).

The spelling of 53343213 in words is "fifty-three million, three hundred forty-three thousand, two hundred thirteen".

Divisors: 1 3 7 11 21 33 49 77 121 147 231 363 539 847 1617 2541 2999 5929 8997 17787 20993 32989 62979 98967 146951 230923 362879 440853 692769 1088637 1616461 2540153 4849383 7620459 17781071 53343213