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297310380 = 223521612293
BaseRepresentation
bin10001101110001…
…001100010101100
3202201102221011120
4101232021202230
51102102413010
645300220540
710240045053
oct2156114254
9681387146
10297310380
11142907764
128369a750
1349798803
142b6b339a
151b17be70
hex11b898ac

297310380 has 48 divisors (see below), whose sum is σ = 833217504. Its totient is φ = 79211520.

The previous prime is 297310379. The next prime is 297310439. The reversal of 297310380 is 83013792.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 128514 + ... + 130806.

It is an arithmetic number, because the mean of its divisors is an integer number (17358698).

Almost surely, 2297310380 is an apocalyptic number.

297310380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

297310380 is an abundant number, since it is smaller than the sum of its proper divisors (535907124).

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

297310380 is a wasteful number, since it uses less digits than its factorization.

297310380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4466 (or 4464 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 297310380 is about 17242.6906253056. The cubic root of 297310380 is about 667.4263634069.

The spelling of 297310380 in words is "two hundred ninety-seven million, three hundred ten thousand, three hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 2161 2293 4322 4586 6483 6879 8644 9172 10805 11465 12966 13758 21610 22930 25932 27516 32415 34395 43220 45860 64830 68790 129660 137580 4955173 9910346 14865519 19820692 24775865 29731038 49551730 59462076 74327595 99103460 148655190 297310380