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196928231 = 2353732213
BaseRepresentation
bin10111011110011…
…10001011100111
3111201112222202012
423233032023213
5400403200411
631312504435
74610601533
oct1357161347
9451488665
10196928231
11a1185105
1255b4b11b
1331a500a6
141c222bc3
151244e18b
hexbbce2e7

196928231 has 16 divisors (see below), whose sum is σ = 212331456. Its totient is φ = 182198016.

The previous prime is 196928219. The next prime is 196928233. The reversal of 196928231 is 132829691.

It is a cyclic number.

It is not a de Polignac number, because 196928231 - 218 = 196666087 is a prime.

It is a super-2 number, since 2×1969282312 = 77561456329578722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196928233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87881 + ... + 90093.

It is an arithmetic number, because the mean of its divisors is an integer number (13270716).

Almost surely, 2196928231 is an apocalyptic number.

196928231 is a deficient number, since it is larger than the sum of its proper divisors (15403225).

196928231 is a wasteful number, since it uses less digits than its factorization.

196928231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2362.

The product of its digits is 46656, while the sum is 41.

The square root of 196928231 is about 14033.1119499561. Note that the first 3 decimals coincide. The cubic root of 196928231 is about 581.7941185161.

The spelling of 196928231 in words is "one hundred ninety-six million, nine hundred twenty-eight thousand, two hundred thirty-one".

Divisors: 1 23 53 73 1219 1679 2213 3869 50899 88987 117289 161549 2697647 3715627 8562097 196928231