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200190371 = 443451897
BaseRepresentation
bin10111110111010…
…10100110100011
3111221200201120012
423323222212203
5402222042441
631510435135
74650406253
oct1373524643
9457621505
10200190371
11a3002a97
1257062aab
1332622b54
141c831963
15128959eb
hexbeea9a3

200190371 has 4 divisors (see below), whose sum is σ = 200642712. Its totient is φ = 199738032.

The previous prime is 200190337. The next prime is 200190373. The reversal of 200190371 is 173091002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-200190371 is a prime.

It is a super-2 number, since 2×2001903712 = 80152369282235282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200190373) 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 3 ways as a sum of consecutive naturals, for example, 225506 + ... + 226391.

It is an arithmetic number, because the mean of its divisors is an integer number (50160678).

Almost surely, 2200190371 is an apocalyptic number.

200190371 is a deficient number, since it is larger than the sum of its proper divisors (452341).

200190371 is an equidigital number, since it uses as much as digits as its factorization.

200190371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 452340.

The product of its (nonzero) digits is 378, while the sum is 23.

The square root of 200190371 is about 14148.8646540986. The cubic root of 200190371 is about 584.9890381953.

The spelling of 200190371 in words is "two hundred million, one hundred ninety thousand, three hundred seventy-one".

Divisors: 1 443 451897 200190371