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52947543 = 3112145861
BaseRepresentation
bin1100100111111…
…0101001010111
310200122000101010
43021332221113
5102023310133
65130503303
71212022005
oct311765127
9120560333
1052947543
1127984300
1215894b33
13ac7ac0c
147063a75
1549ad263
hex327ea57

52947543 has 12 divisors (see below), whose sum is σ = 77598584. Its totient is φ = 32089200.

The previous prime is 52947511. The next prime is 52947551. The reversal of 52947543 is 34574925.

It is not a de Polignac number, because 52947543 - 25 = 52947511 is a prime.

It is a super-3 number, since 3×529475433 (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52947593) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 72568 + ... + 73293.

Almost surely, 252947543 is an apocalyptic number.

52947543 is a deficient number, since it is larger than the sum of its proper divisors (24651041).

52947543 is a wasteful number, since it uses less digits than its factorization.

52947543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145886 (or 145875 counting only the distinct ones).

The product of its digits is 151200, while the sum is 39.

The square root of 52947543 is about 7276.5062358250. The cubic root of 52947543 is about 375.5046077958.

The spelling of 52947543 in words is "fifty-two million, nine hundred forty-seven thousand, five hundred forty-three".

Divisors: 1 3 11 33 121 363 145861 437583 1604471 4813413 17649181 52947543