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52831487 = 73799161
BaseRepresentation
bin1100100110001…
…0010011111111
310200102010011202
43021202103333
5102011101422
65124210115
71211026442
oct311422377
9120363152
1052831487
1127905095
121583993b
13ac3a147
147033659
154988b92
hex32624ff

52831487 has 8 divisors (see below), whose sum is σ = 54239040. Its totient is φ = 51442560.

The previous prime is 52831453. The next prime is 52831489. The reversal of 52831487 is 78413825.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 52831487 - 26 = 52831423 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52831487.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52831489) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1187 + ... + 10347.

It is an arithmetic number, because the mean of its divisors is an integer number (6779880).

Almost surely, 252831487 is an apocalyptic number.

52831487 is a deficient number, since it is larger than the sum of its proper divisors (1407553).

52831487 is an equidigital number, since it uses as much as digits as its factorization.

52831487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9313.

The product of its digits is 53760, while the sum is 38.

The square root of 52831487 is about 7268.5271547955. The cubic root of 52831487 is about 375.2300502502.

The spelling of 52831487 in words is "fifty-two million, eight hundred thirty-one thousand, four hundred eighty-seven".

Divisors: 1 73 79 5767 9161 668753 723719 52831487