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52947453 = 3131638329
BaseRepresentation
bin1100100111111…
…0100111111101
310200122000020210
43021332213331
5102023304303
65130503033
71212021516
oct311764775
9120560223
1052947453
1127984229
1215894a79
13ac7ab70
147063a0d
1549ad203
hex327e9fd

52947453 has 16 divisors (see below), whose sum is σ = 76502720. Its totient is φ = 32379264.

The previous prime is 52947421. The next prime is 52947467. The reversal of 52947453 is 35474925.

It is not a de Polignac number, because 52947453 - 25 = 52947421 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is the 7277-th Hogben number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52940453) by changing a digit.

It is a nontrivial repunit in base 7276.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2193 + ... + 10521.

It is an arithmetic number, because the mean of its divisors is an integer number (4781420).

Almost surely, 252947453 is an apocalyptic number.

It is an amenable number.

52947453 is a deficient number, since it is larger than the sum of its proper divisors (23555267).

52947453 is a wasteful number, since it uses less digits than its factorization.

52947453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8508.

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

The square root of 52947453 is about 7276.5000515358. The cubic root of 52947453 is about 375.5043950353.

The spelling of 52947453 in words is "fifty-two million, nine hundred forty-seven thousand, four hundred fifty-three".

Divisors: 1 3 13 39 163 489 2119 6357 8329 24987 108277 324831 1357627 4072881 17649151 52947453