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297831072 = 25371143937
BaseRepresentation
bin10001110000001…
…000101010100000
3202202102101102110
4101300020222200
51102221043242
645315315320
710244344110
oct2160105240
9682371373
10297831072
11143132990
12838abb40
134991b806
142b7ab040
151b23139c
hex11c08aa0

297831072 has 192 divisors, whose sum is σ = 998452224. Its totient is φ = 75479040.

The previous prime is 297831059. The next prime is 297831089. The reversal of 297831072 is 270138792.

297831072 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 297831072.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 317388 + ... + 318324.

It is an arithmetic number, because the mean of its divisors is an integer number (5200272).

Almost surely, 2297831072 is an apocalyptic number.

297831072 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 297831072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (499226112).

297831072 is an abundant number, since it is smaller than the sum of its proper divisors (700621152).

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

297831072 is a wasteful number, since it uses less digits than its factorization.

297831072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1011 (or 1003 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 39.

The square root of 297831072 is about 17257.7829398796. The cubic root of 297831072 is about 667.8157666603.

The spelling of 297831072 in words is "two hundred ninety-seven million, eight hundred thirty-one thousand, seventy-two".