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189320202 = 23210517789
BaseRepresentation
bin10110100100011…
…00110000001010
3111012020110111100
423102030300022
5341431221302
630441442230
74456123641
oct1322146012
9435213440
10189320202
1197959085
12534a0376
13302b81b6
141b202358
1511949d1c
hexb48cc0a

189320202 has 12 divisors (see below), whose sum is σ = 410193810. Its totient is φ = 63106728.

The previous prime is 189320191. The next prime is 189320213. The reversal of 189320202 is 202023981.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (189320191) and next prime (189320213).

It can be written as a sum of positive squares in only one way, i.e., 99620361 + 89699841 = 9981^2 + 9471^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5258877 + ... + 5258912.

Almost surely, 2189320202 is an apocalyptic number.

189320202 is an abundant number, since it is smaller than the sum of its proper divisors (220873608).

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

189320202 is a wasteful number, since it uses less digits than its factorization.

189320202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10517797 (or 10517794 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 189320202 is about 13759.3677907090. The cubic root of 189320202 is about 574.2032589612.

The spelling of 189320202 in words is "one hundred eighty-nine million, three hundred twenty thousand, two hundred two".

Divisors: 1 2 3 6 9 18 10517789 21035578 31553367 63106734 94660101 189320202