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297352428 = 22329854461
BaseRepresentation
bin10001101110010…
…011110011101100
3202201112001211220
4101232103303230
51102110234203
645301143340
710240311462
oct2156236354
9681461756
10297352428
1114293630a
12836bab50
13497b19a9
142b6c4832
151b189653
hex11b93cec

297352428 has 24 divisors (see below), whose sum is σ = 717748080. Its totient is φ = 95699520.

The previous prime is 297352427. The next prime is 297352453. The reversal of 297352428 is 824253792.

It is a self number, because there is not a number n which added to its sum of digits gives 297352428.

It is not an unprimeable number, because it can be changed into a prime (297352427) 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, 426883 + ... + 427578.

It is an arithmetic number, because the mean of its divisors is an integer number (29906170).

Almost surely, 2297352428 is an apocalyptic number.

It is an amenable number.

297352428 is an abundant number, since it is smaller than the sum of its proper divisors (420395652).

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

297352428 is a wasteful number, since it uses less digits than its factorization.

297352428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 854497 (or 854495 counting only the distinct ones).

The product of its digits is 241920, while the sum is 42.

The square root of 297352428 is about 17243.9098814625. The cubic root of 297352428 is about 667.4578261730.

The spelling of 297352428 in words is "two hundred ninety-seven million, three hundred fifty-two thousand, four hundred twenty-eight".

Divisors: 1 2 3 4 6 12 29 58 87 116 174 348 854461 1708922 2563383 3417844 5126766 10253532 24779369 49558738 74338107 99117476 148676214 297352428