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2490863247 = 3214915711831
BaseRepresentation
bin1001010001110111…
…1000111010001111
320102120222222000100
42110131320322033
520100130110442
61051055502143
7115503662655
oct22435707217
96376888010
102490863247
111069033474
12596227953
133090807a2
14198b52dd5
15e8a2384c
hex94778e8f

2490863247 has 24 divisors (see below), whose sum is σ = 3645439200. Its totient is φ = 1638786240.

The previous prime is 2490863189. The next prime is 2490863267. The reversal of 2490863247 is 7423680942.

2490863247 is a `hidden beast` number, since 2 + 4 + 9 + 0 + 8 + 632 + 4 + 7 = 666.

It is not a de Polignac number, because 2490863247 - 218 = 2490601103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2490863267) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 204622 + ... + 216452.

It is an arithmetic number, because the mean of its divisors is an integer number (151893300).

Almost surely, 22490863247 is an apocalyptic number.

2490863247 is a deficient number, since it is larger than the sum of its proper divisors (1154575953).

2490863247 is a wasteful number, since it uses less digits than its factorization.

2490863247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12143 (or 12140 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 45.

The square root of 2490863247 is about 49908.5488368476. The cubic root of 2490863247 is about 1355.5533924197.

The spelling of 2490863247 in words is "two billion, four hundred ninety million, eight hundred sixty-three thousand, two hundred forty-seven".

Divisors: 1 3 9 149 157 447 471 1341 1413 11831 23393 35493 70179 106479 210537 1762819 1857467 5288457 5572401 15865371 16717203 276762583 830287749 2490863247