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200297172 = 22316691431
BaseRepresentation
bin10111111000001…
…00101011010100
3111221220011001210
423330010223110
5402234002142
631513021420
74651332525
oct1374045324
9457804053
10200297172
11a3076259
12570b4870
133265c64a
141c85c84c
15128b749c
hexbf04ad4

200297172 has 12 divisors (see below), whose sum is σ = 467360096. Its totient is φ = 66765720.

The previous prime is 200297147. The next prime is 200297233. The reversal of 200297172 is 271792002.

It is a happy number.

200297172 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×2002971722 = 80237914222395168, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8345704 + ... + 8345727.

Almost surely, 2200297172 is an apocalyptic number.

It is an amenable number.

200297172 is an abundant number, since it is smaller than the sum of its proper divisors (267062924).

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

200297172 is a wasteful number, since it uses less digits than its factorization.

200297172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16691438 (or 16691436 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 30.

The square root of 200297172 is about 14152.6383406063. The cubic root of 200297172 is about 585.0930497031.

The spelling of 200297172 in words is "two hundred million, two hundred ninety-seven thousand, one hundred seventy-two".

Divisors: 1 2 3 4 6 12 16691431 33382862 50074293 66765724 100148586 200297172