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297115040 = 2551856969
BaseRepresentation
bin10001101101011…
…001110110100000
3202201002000012202
4101231121312200
51102030140130
645252112332
710235302415
oct2155316640
9681060182
10297115040
11142793a22
12836056a8
134972a921
142b66210c
151b13e145
hex11b59da0

297115040 has 24 divisors (see below), whose sum is σ = 701934660. Its totient is φ = 118845952.

The previous prime is 297115031. The next prime is 297115057. The reversal of 297115040 is 40511792.

It can be written as a sum of positive squares in 2 ways, for example, as 297079696 + 35344 = 17236^2 + 188^2 .

It is a junction number, because it is equal to n+sod(n) for n = 297114994 and 297115012.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 928325 + ... + 928644.

Almost surely, 2297115040 is an apocalyptic number.

297115040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

297115040 is an abundant number, since it is smaller than the sum of its proper divisors (404819620).

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

297115040 is a wasteful number, since it uses less digits than its factorization.

297115040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1856984 (or 1856976 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 29.

The square root of 297115040 is about 17237.0252653989. The cubic root of 297115040 is about 667.2801597107.

The spelling of 297115040 in words is "two hundred ninety-seven million, one hundred fifteen thousand, forty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 1856969 3713938 7427876 9284845 14855752 18569690 29711504 37139380 59423008 74278760 148557520 297115040