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231371206 = 21121149843
BaseRepresentation
bin11011100101001…
…11000111000110
3121010100212121221
431302213013012
5433212334311
634543030554
75506423423
oct1562470706
9533325557
10231371206
1110966a680
126559b45a
1338c1c451
1422a2ad4a
15154a4671
hexdca71c6

231371206 has 16 divisors (see below), whose sum is σ = 380409408. Its totient is φ = 104668200.

The previous prime is 231371183. The next prime is 231371213. The reversal of 231371206 is 602173132.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20280 + ... + 29563.

It is an arithmetic number, because the mean of its divisors is an integer number (23775588).

Almost surely, 2231371206 is an apocalyptic number.

231371206 is a deficient number, since it is larger than the sum of its proper divisors (149038202).

231371206 is a wasteful number, since it uses less digits than its factorization.

231371206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50067.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 231371206 is about 15210.8910324149. The cubic root of 231371206 is about 613.9077322829.

The spelling of 231371206 in words is "two hundred thirty-one million, three hundred seventy-one thousand, two hundred six".

Divisors: 1 2 11 22 211 422 2321 4642 49843 99686 548273 1096546 10516873 21033746 115685603 231371206