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200194201 = 141492
BaseRepresentation
bin10111110111010…
…11100010011001
3111221200220211001
423323223202121
5402222203301
631510505001
74650423364
oct1373534231
9457626731
10200194201
11a3005959
1257065161
133262480c
141c8330db
1512896c01
hexbeeb899

200194201 has 3 divisors (see below), whose sum is σ = 200208351. Its totient is φ = 200180052.

The previous prime is 200194171. The next prime is 200194213. The reversal of 200194201 is 102491002.

The square root of 200194201 is 14149.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 102491002 = 251245501.

It can be written as a sum of positive squares in only one way, i.e., 187662601 + 12531600 = 13699^2 + 3540^2 .

It is not a de Polignac number, because 200194201 - 221 = 198097049 is a prime.

It is a super-2 number, since 2×2001942012 = 80155436228056802, which contains 22 as substring.

It is a hoax number, since the sum of its digits (19) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200294201) by changing a digit.

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 2 ways as a sum of consecutive naturals, for example, 7075 + ... + 21223.

It is an arithmetic number, because the mean of its divisors is an integer number (66736117).

Almost surely, 2200194201 is an apocalyptic number.

200194201 is the 14149-th square number.

200194201 is the 7075-th centered octagonal number.

It is an amenable number.

200194201 is a deficient number, since it is larger than the sum of its proper divisors (14150).

200194201 is an frugal number, since it uses more digits than its factorization.

200194201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28298 (or 14149 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

The cubic root of 200194201 is about 584.9927688005.

Multiplying 200194201 by its product of nonzero digits (144), we get a square (28827964944 = 1697882).

The spelling of 200194201 in words is "two hundred million, one hundred ninety-four thousand, two hundred one".

Divisors: 1 14149 200194201