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53241931 = 353150827
BaseRepresentation
bin1100101100011…
…0100001001011
310201011222012101
43023012201023
5102112220211
65141054231
71214356201
oct313064113
9121158171
1053241931
11280654a6
12159b7377
13b051c02
1470dd071
154a1a5c1
hex32c684b

53241931 has 4 divisors (see below), whose sum is σ = 53393112. Its totient is φ = 53090752.

The previous prime is 53241907. The next prime is 53241949. The reversal of 53241931 is 13914235.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13914235 = 52782847.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-53241931 is a prime.

It is a super-2 number, since 2×532419312 = 5669406433217522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53241931.

It is not an unprimeable number, because it can be changed into a prime (53241901) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75061 + ... + 75766.

It is an arithmetic number, because the mean of its divisors is an integer number (13348278).

Almost surely, 253241931 is an apocalyptic number.

53241931 is a deficient number, since it is larger than the sum of its proper divisors (151181).

53241931 is a wasteful number, since it uses less digits than its factorization.

53241931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151180.

The product of its digits is 3240, while the sum is 28.

The square root of 53241931 is about 7296.7068599472. The cubic root of 53241931 is about 376.1992563731.

The spelling of 53241931 in words is "fifty-three million, two hundred forty-one thousand, nine hundred thirty-one".

Divisors: 1 353 150827 53241931