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200156164 = 221321717417
BaseRepresentation
bin10111110111000…
…10010000000100
3111221121222122021
423323202100010
5402214444124
631510012524
74650204445
oct1373422004
9457558567
10200156164
11a2a8a31a
1257047144
1332610400
141c8232cc
151288a7e4
hexbee2404

200156164 has 36 divisors (see below), whose sum is σ = 401624244. Its totient is φ = 86940672.

The previous prime is 200156153. The next prime is 200156167. The reversal of 200156164 is 461651002.

It can be written as a sum of positive squares in 6 ways, for example, as 160000 + 199996164 = 400^2 + 14142^2 .

It is not an unprimeable number, because it can be changed into a prime (200156167) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2784 + ... + 20200.

It is an arithmetic number, because the mean of its divisors is an integer number (11156229).

Almost surely, 2200156164 is an apocalyptic number.

It is an amenable number.

200156164 is an abundant number, since it is smaller than the sum of its proper divisors (201468080).

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

200156164 is a wasteful number, since it uses less digits than its factorization.

200156164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17464 (or 17449 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 200156164 is about 14147.6557775484. The cubic root of 200156164 is about 584.9557168126.

The spelling of 200156164 in words is "two hundred million, one hundred fifty-six thousand, one hundred sixty-four".

Divisors: 1 2 4 13 17 26 34 52 68 169 221 338 442 676 884 2873 5746 11492 17417 34834 69668 226421 296089 452842 592178 905684 1184356 2943473 3849157 5886946 7698314 11773892 15396628 50039041 100078082 200156164