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52510530 = 2351750351
BaseRepresentation
bin1100100001001…
…1111101000010
310122210210220110
43020103331002
5101420314110
65113252150
71205221632
oct310237502
9118723813
1052510530
1127705a36
1215704056
13ab57027
146d8c6c2
154923a20
hex3213f42

52510530 has 16 divisors (see below), whose sum is σ = 126025344. Its totient is φ = 14002800.

The previous prime is 52510529. The next prime is 52510543. The reversal of 52510530 is 3501525.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 52510497 and 52510506.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 875146 + ... + 875205.

It is an arithmetic number, because the mean of its divisors is an integer number (7876584).

Almost surely, 252510530 is an apocalyptic number.

52510530 is an abundant number, since it is smaller than the sum of its proper divisors (73514814).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52510530 is a wasteful number, since it uses less digits than its factorization.

52510530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1750361.

The product of its (nonzero) digits is 750, while the sum is 21.

The square root of 52510530 is about 7246.4149756966. The cubic root of 52510530 is about 374.4686519179.

The spelling of 52510530 in words is "fifty-two million, five hundred ten thousand, five hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 1750351 3500702 5251053 8751755 10502106 17503510 26255265 52510530