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297255980 = 22572123257
BaseRepresentation
bin10001101101111…
…100010000101100
3202201100011112202
4101231330100230
51102044142410
645255121032
710236430340
oct2155742054
9681304482
10297255980
1114287a8aa
1283673178
1349779b18
142b69b620
151b16aca5
hex11b7c42c

297255980 has 24 divisors (see below), whose sum is σ = 713414688. Its totient is φ = 101916288.

The previous prime is 297255967. The next prime is 297255991. The reversal of 297255980 is 89552792.

297255980 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2972559802 = 176722235291520800, which contains 22 as substring.

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, 1061489 + ... + 1061768.

It is an arithmetic number, because the mean of its divisors is an integer number (29725612).

Almost surely, 2297255980 is an apocalyptic number.

297255980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

297255980 is an abundant number, since it is smaller than the sum of its proper divisors (416158708).

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

297255980 is a wasteful number, since it uses less digits than its factorization.

297255980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2123273 (or 2123271 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 47.

The square root of 297255980 is about 17241.1130731168. The cubic root of 297255980 is about 667.3856537520.

The spelling of 297255980 in words is "two hundred ninety-seven million, two hundred fifty-five thousand, nine hundred eighty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 2123257 4246514 8493028 10616285 14862799 21232570 29725598 42465140 59451196 74313995 148627990 297255980