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52315487 = 723113433
BaseRepresentation
bin1100011110010…
…0010101011111
310122102220100122
43013210111133
5101343043422
65105145155
71203450200
oct307442537
9118386318
1052315487
1127592444
121562b1bb
13aab9313
146d3b5a7
1548d5d42
hex31e455f

52315487 has 12 divisors (see below), whose sum is σ = 61070256. Its totient is φ = 44684640.

The previous prime is 52315463. The next prime is 52315489. The reversal of 52315487 is 78451325.

It is a happy number.

It is not a de Polignac number, because 52315487 - 26 = 52315423 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 (52315489) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13523 + ... + 16955.

It is an arithmetic number, because the mean of its divisors is an integer number (5089188).

Almost surely, 252315487 is an apocalyptic number.

52315487 is a deficient number, since it is larger than the sum of its proper divisors (8754769).

52315487 is a wasteful number, since it uses less digits than its factorization.

52315487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3758 (or 3751 counting only the distinct ones).

The product of its digits is 33600, while the sum is 35.

The square root of 52315487 is about 7232.9445594447. The cubic root of 52315487 is about 374.0044395938.

The spelling of 52315487 in words is "fifty-two million, three hundred fifteen thousand, four hundred eighty-seven".

Divisors: 1 7 49 311 2177 3433 15239 24031 168217 1067663 7473641 52315487