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496297640 = 23539731253
BaseRepresentation
bin11101100101001…
…110011010101000
31021120212112101002
4131211032122220
52004023011030
6121125214132
715204313616
oct3545163250
91246775332
10496297640
11235168843
1211a261348
137ba89b57
1449cb06b6
152d886245
hex1d94e6a8

496297640 has 32 divisors (see below), whose sum is σ = 1119518280. Its totient is φ = 198012672.

The previous prime is 496297559. The next prime is 496297649. The reversal of 496297640 is 46792694.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 447660964 + 48636676 = 21158^2 + 6974^2 .

It is a super-2 number, since 2×4962976402 = 492622694939139200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (496297649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 254 + ... + 31506.

Almost surely, 2496297640 is an apocalyptic number.

496297640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

496297640 is an abundant number, since it is smaller than the sum of its proper divisors (623220640).

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

496297640 is a wasteful number, since it uses less digits than its factorization.

496297640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31661 (or 31657 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 47.

The square root of 496297640 is about 22277.7386644157. The cubic root of 496297640 is about 791.7366272184.

The spelling of 496297640 in words is "four hundred ninety-six million, two hundred ninety-seven thousand, six hundred forty".

Divisors: 1 2 4 5 8 10 20 40 397 794 1588 1985 3176 3970 7940 15880 31253 62506 125012 156265 250024 312530 625060 1250120 12407441 24814882 49629764 62037205 99259528 124074410 248148820 496297640