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53231001 = 317743667
BaseRepresentation
bin1100101100001…
…1110110011001
310201011102012120
43023003312121
5102111343001
65140531453
71214312265
oct313036631
9121142176
1053231001
112805826a
12159b0b89
13b049c45
1470d90a5
154a17236
hex32c3d99

53231001 has 4 divisors (see below), whose sum is σ = 70974672. Its totient is φ = 35487332.

The previous prime is 53230873. The next prime is 53231051. The reversal of 53231001 is 10013235.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 53231001 - 27 = 53230873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53231051) 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, 8871831 + ... + 8871836.

It is an arithmetic number, because the mean of its divisors is an integer number (17743668).

Almost surely, 253231001 is an apocalyptic number.

It is an amenable number.

53231001 is a deficient number, since it is larger than the sum of its proper divisors (17743671).

53231001 is a wasteful number, since it uses less digits than its factorization.

53231001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17743670.

The product of its (nonzero) digits is 90, while the sum is 15.

The square root of 53231001 is about 7295.9578534967. The cubic root of 53231001 is about 376.1735113810.

Adding to 53231001 its reverse (10013235), we get a palindrome (63244236).

The spelling of 53231001 in words is "fifty-three million, two hundred thirty-one thousand, one".

Divisors: 1 3 17743667 53231001