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490698984 = 23320445791
BaseRepresentation
bin11101001111110…
…111100011101000
31021012100002110110
4131033313203220
52001104331414
6120405214320
715105605166
oct3517674350
91235302413
10490698984
11231a94456
121184013a0
137a879739
1449254236
152d12c459
hex1d3f78e8

490698984 has 16 divisors (see below), whose sum is σ = 1226747520. Its totient is φ = 163566320.

The previous prime is 490698983. The next prime is 490699007. The reversal of 490698984 is 489896094.

It is not an unprimeable number, because it can be changed into a prime (490698983) 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, 10222872 + ... + 10222919.

It is an arithmetic number, because the mean of its divisors is an integer number (76671720).

Almost surely, 2490698984 is an apocalyptic number.

It is an amenable number.

490698984 is an abundant number, since it is smaller than the sum of its proper divisors (736048536).

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

490698984 is a wasteful number, since it uses less digits than its factorization.

490698984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20445800 (or 20445796 counting only the distinct ones).

The product of its (nonzero) digits is 4478976, while the sum is 57.

The square root of 490698984 is about 22151.7264338471. The cubic root of 490698984 is about 788.7482092714.

The spelling of 490698984 in words is "four hundred ninety million, six hundred ninety-eight thousand, nine hundred eighty-four".

Divisors: 1 2 3 4 6 8 12 24 20445791 40891582 61337373 81783164 122674746 163566328 245349492 490698984