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490712924 = 221319796287
BaseRepresentation
bin11101001111111…
…010111101011100
31021012100210120202
4131033322331130
52001110303144
6120405403032
715105663632
oct3517727534
91235323522
10490712924
11231aa3979
12118409478
137a882ba0
1449259352
152d13164e
hex1d3faf5c

490712924 has 48 divisors (see below), whose sum is σ = 985958400. Its totient is φ = 211813056.

The previous prime is 490712897. The next prime is 490712933. The reversal of 490712924 is 429217094.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74909 + ... + 81195.

It is an arithmetic number, because the mean of its divisors is an integer number (20540800).

Almost surely, 2490712924 is an apocalyptic number.

It is an amenable number.

490712924 is an abundant number, since it is smaller than the sum of its proper divisors (495245476).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

490712924 is a wasteful number, since it uses less digits than its factorization.

490712924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6402 (or 6400 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 490712924 is about 22152.0410797741. The cubic root of 490712924 is about 788.7556782400.

The spelling of 490712924 in words is "four hundred ninety million, seven hundred twelve thousand, nine hundred twenty-four".