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200223138 = 2352616343
BaseRepresentation
bin10111110111100…
…10100110100010
3111221202101111210
423323302212202
5402224120023
631511250550
74650603633
oct1373624642
9457671453
10200223138
11a3025675
1257079a56
1332634a3b
141c83d88a
15128a0593
hexbef29a2

200223138 has 16 divisors (see below), whose sum is σ = 400585536. Its totient is φ = 66717840.

The previous prime is 200223103. The next prime is 200223139. The reversal of 200223138 is 831322002.

It is not an unprimeable number, because it can be changed into a prime (200223139) 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, 28395 + ... + 34737.

It is an arithmetic number, because the mean of its divisors is an integer number (25036596).

Almost surely, 2200223138 is an apocalyptic number.

200223138 is an abundant number, since it is smaller than the sum of its proper divisors (200362398).

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

200223138 is a wasteful number, since it uses less digits than its factorization.

200223138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11609.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 200223138 is about 14150.0225441517. The cubic root of 200223138 is about 585.0209533002.

The spelling of 200223138 in words is "two hundred million, two hundred twenty-three thousand, one hundred thirty-eight".

Divisors: 1 2 3 6 5261 6343 10522 12686 15783 19029 31566 38058 33370523 66741046 100111569 200223138