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490868583 = 3163622861
BaseRepresentation
bin11101010000100…
…000111101100111
31021012122201002220
4131100200331213
52001130243313
6120413003423
715110212512
oct3520407547
91235581086
10490868583
1123209a917
12118483573
137a9089aa
1449299d79
152d162823
hex1d420f67

490868583 has 4 divisors (see below), whose sum is σ = 654491448. Its totient is φ = 327245720.

The previous prime is 490868579. The next prime is 490868617. The reversal of 490868583 is 385868094.

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 490868583 - 22 = 490868579 is a prime.

It is a super-3 number, since 3×4908685833 (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (490868513) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81811428 + ... + 81811433.

It is an arithmetic number, because the mean of its divisors is an integer number (163622862).

Almost surely, 2490868583 is an apocalyptic number.

490868583 is a deficient number, since it is larger than the sum of its proper divisors (163622865).

490868583 is a wasteful number, since it uses less digits than its factorization.

490868583 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163622864.

The product of its (nonzero) digits is 1658880, while the sum is 51.

The square root of 490868583 is about 22155.5542246183. The cubic root of 490868583 is about 788.8390697943.

The spelling of 490868583 in words is "four hundred ninety million, eight hundred sixty-eight thousand, five hundred eighty-three".

Divisors: 1 3 163622861 490868583