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2485780490 = 251186720947
BaseRepresentation
bin1001010000101010…
…0000000000001010
320102020102201210002
42110022200000022
520042324433430
61050354523002
7115412533304
oct22412400012
96366381702
102485780490
111066181746
12594596462
13307cc113b
141981cc974
15e836c845
hex942a000a

2485780490 has 16 divisors (see below), whose sum is σ = 4474995552. Its totient is φ = 994180944.

The previous prime is 2485780489. The next prime is 2485780519. The reversal of 2485780490 is 940875842.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108197 + ... + 129143.

It is an arithmetic number, because the mean of its divisors is an integer number (279687222).

Almost surely, 22485780490 is an apocalyptic number.

2485780490 is a deficient number, since it is larger than the sum of its proper divisors (1989215062).

2485780490 is a wasteful number, since it uses less digits than its factorization.

2485780490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32821.

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

The square root of 2485780490 is about 49857.6021284618. The cubic root of 2485780490 is about 1354.6307350137.

The spelling of 2485780490 in words is "two billion, four hundred eighty-five million, seven hundred eighty thousand, four hundred ninety".

Divisors: 1 2 5 10 11867 20947 23734 41894 59335 104735 118670 209470 248578049 497156098 1242890245 2485780490