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196249231 = 672929093
BaseRepresentation
bin10111011001010…
…00011010001111
3111200021111100001
423230220122033
5400214433411
631250145131
74602043123
oct1354503217
9450244301
10196249231
11a0860a52
12558821a7
1331873009
141c0c7583
1512367dc1
hexbb2868f

196249231 has 4 divisors (see below), whose sum is σ = 199178392. Its totient is φ = 193320072.

The previous prime is 196249217. The next prime is 196249279. The reversal of 196249231 is 132942691.

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

It is a cyclic number.

It is not a de Polignac number, because 196249231 - 27 = 196249103 is a prime.

It is a super-2 number, since 2×1962492312 = 77027521336182722, 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 (190249231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1464480 + ... + 1464613.

It is an arithmetic number, because the mean of its divisors is an integer number (49794598).

Almost surely, 2196249231 is an apocalyptic number.

196249231 is a deficient number, since it is larger than the sum of its proper divisors (2929161).

196249231 is an equidigital number, since it uses as much as digits as its factorization.

196249231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2929160.

The product of its digits is 23328, while the sum is 37.

The square root of 196249231 is about 14008.8982793080. The cubic root of 196249231 is about 581.1246815660.

The spelling of 196249231 in words is "one hundred ninety-six million, two hundred forty-nine thousand, two hundred thirty-one".

Divisors: 1 67 2929093 196249231