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297638055 = 3251113232011
BaseRepresentation
bin10001101111011…
…001100010100111
3202202001120122200
4101233121202213
51102143404210
645311225543
710242611301
oct2157314247
9682046580
10297638055
11143010970
12838182b3
13498819c0
142b75a971
151b1e40c0
hex11bd98a7

297638055 has 96 divisors (see below), whose sum is σ = 632765952. Its totient is φ = 127353600.

The previous prime is 297637999. The next prime is 297638069. The reversal of 297638055 is 550836792.

It is a happy number.

297638055 is a `hidden beast` number, since 2 + 9 + 7 + 638 + 0 + 5 + 5 = 666.

It is not a de Polignac number, because 297638055 - 27 = 297637927 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 297638055.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 147000 + ... + 149010.

It is an arithmetic number, because the mean of its divisors is an integer number (6591312).

Almost surely, 2297638055 is an apocalyptic number.

297638055 is an abundant number, since it is smaller than the sum of its proper divisors (335127897).

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

297638055 is a wasteful number, since it uses less digits than its factorization.

297638055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2069 (or 2066 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 45.

The square root of 297638055 is about 17252.1898610003. The cubic root of 297638055 is about 667.6714704875.

The spelling of 297638055 in words is "two hundred ninety-seven million, six hundred thirty-eight thousand, fifty-five".

Divisors: 1 3 5 9 11 13 15 23 33 39 45 55 65 69 99 115 117 143 165 195 207 253 299 345 429 495 585 715 759 897 1035 1265 1287 1495 2011 2145 2277 2691 3289 3795 4485 6033 6435 9867 10055 11385 13455 16445 18099 22121 26143 29601 30165 46253 49335 66363 78429 90495 110605 130715 138759 148005 199089 231265 235287 287573 331815 392145 416277 508783 601289 693795 862719 995445 1176435 1437865 1526349 1803867 2081385 2543915 2588157 3006445 4313595 4579047 5411601 6614179 7631745 9019335 12940785 19842537 22895235 27058005 33070895 59527611 99212685 297638055