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200657212 = 22726772
BaseRepresentation
bin10111111010111…
…00100100111100
3111222120102221121
423331130210330
5402332012322
631524440324
74654362310
oct1375344474
9458512847
10200657212
11a32a1808
12572490a4
13327574a2
141c913b40
1512938ec7
hexbf5c93c

200657212 has 18 divisors (see below), whose sum is σ = 401464392. Its totient is φ = 85963824.

The previous prime is 200657209. The next prime is 200657227. The reversal of 200657212 is 212756002.

It is a super-2 number, since 2×2006572122 = 80526633455225888, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 73618 + ... + 76294.

Almost surely, 2200657212 is an apocalyptic number.

It is an amenable number.

200657212 is an abundant number, since it is smaller than the sum of its proper divisors (200807180).

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

200657212 is an frugal number, since it uses more digits than its factorization.

200657212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5365 (or 2686 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 200657212 is about 14165.3525194398. The cubic root of 200657212 is about 585.4434137893.

The spelling of 200657212 in words is "two hundred million, six hundred fifty-seven thousand, two hundred twelve".

Divisors: 1 2 4 7 14 28 2677 5354 10708 18739 37478 74956 7166329 14332658 28665316 50164303 100328606 200657212