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189100202 = 2313457661
BaseRepresentation
bin10110100010101…
…11000010101010
3111011211021201012
423101113002222
5341402201302
630433023522
74454216354
oct1321270252
9434737635
10189100202
1197818865
12533b4ba2
133023c015
141b1860d4
1511904a52
hexb4570aa

189100202 has 16 divisors (see below), whose sum is σ = 285610632. Its totient is φ = 93899520.

The previous prime is 189100201. The next prime is 189100207. The reversal of 189100202 is 202001981.

It can be written as a sum of positive squares in 4 ways, for example, as 162588001 + 26512201 = 12751^2 + 5149^2 .

It is not an unprimeable number, because it can be changed into a prime (189100201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 285752 + ... + 286412.

Almost surely, 2189100202 is an apocalyptic number.

189100202 is a deficient number, since it is larger than the sum of its proper divisors (96510430).

189100202 is a wasteful number, since it uses less digits than its factorization.

189100202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1433.

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 189100202 is about 13751.3709134762. The cubic root of 189100202 is about 573.9807546551.

The spelling of 189100202 in words is "one hundred eighty-nine million, one hundred thousand, two hundred two".

Divisors: 1 2 313 457 626 661 914 1322 143041 206893 286082 302077 413786 604154 94550101 189100202