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52590215 = 510518043
BaseRepresentation
bin1100100010011…
…1011010000111
310122221212012202
43020213122013
5101430341330
65115105115
71206003146
oct310473207
9118855182
1052590215
112775a897
121574219b
13ab84392
146dad75d
15493c445
hex3227687

52590215 has 4 divisors (see below), whose sum is σ = 63108264. Its totient is φ = 42072168.

The previous prime is 52590203. The next prime is 52590217. The reversal of 52590215 is 51209525.

52590215 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 52590215 - 222 = 48395911 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52590217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5259017 + ... + 5259026.

It is an arithmetic number, because the mean of its divisors is an integer number (15777066).

Almost surely, 252590215 is an apocalyptic number.

52590215 is a deficient number, since it is larger than the sum of its proper divisors (10518049).

52590215 is a wasteful number, since it uses less digits than its factorization.

52590215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10518048.

The product of its (nonzero) digits is 4500, while the sum is 29.

The square root of 52590215 is about 7251.9111274201. The cubic root of 52590215 is about 374.6579755537.

The spelling of 52590215 in words is "fifty-two million, five hundred ninety thousand, two hundred fifteen".

Divisors: 1 5 10518043 52590215