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490878524 = 22669118341
BaseRepresentation
bin11101010000100…
…011011000111100
31021012200012202002
4131100203120330
52001131103044
6120413121432
715110253503
oct3520433074
91235605662
10490878524
112320a7334
12118489278
137a910386
144929d83a
152d16574e
hex1d42363c

490878524 has 12 divisors (see below), whose sum is σ = 859212648. Its totient is φ = 245389200.

The previous prime is 490878523. The next prime is 490878539. The reversal of 490878524 is 425878094.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (490878523) 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, 17594 + ... + 35934.

It is an arithmetic number, because the mean of its divisors is an integer number (71601054).

Almost surely, 2490878524 is an apocalyptic number.

It is an amenable number.

490878524 is a deficient number, since it is larger than the sum of its proper divisors (368334124).

490878524 is a wasteful number, since it uses less digits than its factorization.

490878524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25036 (or 25034 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 47.

The square root of 490878524 is about 22155.7785690325. The cubic root of 490878524 is about 788.8443949102.

The spelling of 490878524 in words is "four hundred ninety million, eight hundred seventy-eight thousand, five hundred twenty-four".

Divisors: 1 2 4 6691 13382 18341 26764 36682 73364 122719631 245439262 490878524