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231468190 = 2597238627
BaseRepresentation
bin11011100101111…
…10110010011110
3121010112210122221
431302332302132
5433223440230
634545055554
75510306242
oct1562766236
9533483587
10231468190
11109726528
12656275ba
1338c54635
1422a54422
15154c327a
hexdcbec9e

231468190 has 16 divisors (see below), whose sum is σ = 420939792. Its totient is φ = 91632384.

The previous prime is 231468163. The next prime is 231468197. The reversal of 231468190 is 91864132.

It is a super-2 number, since 2×2314681902 = 107155045963752200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231468197) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118344 + ... + 120283.

It is an arithmetic number, because the mean of its divisors is an integer number (26308737).

Almost surely, 2231468190 is an apocalyptic number.

231468190 is a deficient number, since it is larger than the sum of its proper divisors (189471602).

231468190 is a wasteful number, since it uses less digits than its factorization.

231468190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238731.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 231468190 is about 15214.0786773304. The cubic root of 231468190 is about 613.9934976517.

The spelling of 231468190 in words is "two hundred thirty-one million, four hundred sixty-eight thousand, one hundred ninety".

Divisors: 1 2 5 10 97 194 485 970 238627 477254 1193135 2386270 23146819 46293638 115734095 231468190