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531080465 = 5234618091
BaseRepresentation
bin11111101001111…
…010010100010001
31101000022200102212
4133221322110101
52041424033330
6124410521505
716106052356
oct3751722421
91330280385
10531080465
11252865683
12129a36295
1386047ac6
145076662d
1531957295
hex1fa7a511

531080465 has 8 divisors (see below), whose sum is σ = 665005248. Its totient is φ = 406391920.

The previous prime is 531080453. The next prime is 531080467. The reversal of 531080465 is 564080135.

It is a happy number.

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

It is not a de Polignac number, because 531080465 - 212 = 531076369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (531080467) 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, 2308931 + ... + 2309160.

It is an arithmetic number, because the mean of its divisors is an integer number (83125656).

Almost surely, 2531080465 is an apocalyptic number.

It is an amenable number.

531080465 is a deficient number, since it is larger than the sum of its proper divisors (133924783).

531080465 is a wasteful number, since it uses less digits than its factorization.

531080465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4618119.

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 531080465 is about 23045.1831192551. The cubic root of 531080465 is about 809.8167878063.

The spelling of 531080465 in words is "five hundred thirty-one million, eighty thousand, four hundred sixty-five".

Divisors: 1 5 23 115 4618091 23090455 106216093 531080465