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52810431 = 317603477
BaseRepresentation
bin1100100101110…
…1001010111111
310200101001021220
43021131022333
5102004413211
65123524423
71210611162
oct311351277
9120331256
1052810431
11278a0293
1215829713
13ac3069b
147029ad9
154982806
hex325d2bf

52810431 has 4 divisors (see below), whose sum is σ = 70413912. Its totient is φ = 35206952.

The previous prime is 52810427. The next prime is 52810477. The reversal of 52810431 is 13401825.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 52810431 - 22 = 52810427 is a prime.

It is a super-2 number, since 2×528104312 = 5577883244811522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52810411) 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, 8801736 + ... + 8801741.

It is an arithmetic number, because the mean of its divisors is an integer number (17603478).

Almost surely, 252810431 is an apocalyptic number.

52810431 is a deficient number, since it is larger than the sum of its proper divisors (17603481).

52810431 is a wasteful number, since it uses less digits than its factorization.

52810431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17603480.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 52810431 is about 7267.0785739525. The cubic root of 52810431 is about 375.1801942884.

The spelling of 52810431 in words is "fifty-two million, eight hundred ten thousand, four hundred thirty-one".

Divisors: 1 3 17603477 52810431