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492120808 = 2361515101
BaseRepresentation
bin11101010101010…
…010101011101000
31021022000022211121
4131111102223220
52001440331213
6120455505024
715123646354
oct3525225350
91238008747
10492120808
11232875713
12118988174
137ac5695a
1449504464
152d30d88d
hex1d552ae8

492120808 has 8 divisors (see below), whose sum is σ = 922726530. Its totient is φ = 246060400.

The previous prime is 492120799. The next prime is 492120821. The reversal of 492120808 is 808021294.

It can be written as a sum of positive squares in only one way, i.e., 475327204 + 16793604 = 21802^2 + 4098^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30757543 + ... + 30757558.

Almost surely, 2492120808 is an apocalyptic number.

It is an amenable number.

492120808 is a deficient number, since it is larger than the sum of its proper divisors (430605722).

492120808 is a wasteful number, since it uses less digits than its factorization.

492120808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61515107 (or 61515103 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 492120808 is about 22183.7960683017. The cubic root of 492120808 is about 789.5092866652.

The spelling of 492120808 in words is "four hundred ninety-two million, one hundred twenty thousand, eight hundred eight".

Divisors: 1 2 4 8 61515101 123030202 246060404 492120808