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490869100 = 22524908691
BaseRepresentation
bin11101010000100…
…001000101101100
31021012122201211001
4131100201011230
52001130302400
6120413010044
715110214151
oct3520410554
91235581731
10490869100
112320a0247
12118483924
137a908cb7
144929a228
152d162a6a
hex1d42116c

490869100 has 18 divisors (see below), whose sum is σ = 1065186164. Its totient is φ = 196347600.

The previous prime is 490869091. The next prime is 490869103. The reversal of 490869100 is 1968094.

It is a self number, because there is not a number n which added to its sum of digits gives 490869100.

It is not an unprimeable number, because it can be changed into a prime (490869103) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2454246 + ... + 2454445.

Almost surely, 2490869100 is an apocalyptic number.

It is an amenable number.

490869100 is an abundant number, since it is smaller than the sum of its proper divisors (574317064).

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

490869100 is a wasteful number, since it uses less digits than its factorization.

490869100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4908705 (or 4908698 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 490869100 is about 22155.5658921184. The cubic root of 490869100 is about 788.8393467386.

The spelling of 490869100 in words is "four hundred ninety million, eight hundred sixty-nine thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 100 4908691 9817382 19634764 24543455 49086910 98173820 122717275 245434550 490869100