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231934093 = 2337449607
BaseRepresentation
bin11011101001100…
…00100010001101
3121011102110202121
431310300202031
5433333342333
635003052541
75514256456
oct1564604215
9534373677
10231934093
11109a14576
1265811151
1339088711
1422b3612d
151556632d
hexdd3088d

231934093 has 16 divisors (see below), whose sum is σ = 249523200. Its totient is φ = 215018496.

The previous prime is 231934069. The next prime is 231934097. The reversal of 231934093 is 390439132.

It is a cyclic number.

It is not a de Polignac number, because 231934093 - 225 = 198379661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231934097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 381796 + ... + 382402.

It is an arithmetic number, because the mean of its divisors is an integer number (15595200).

Almost surely, 2231934093 is an apocalyptic number.

231934093 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

231934093 is a deficient number, since it is larger than the sum of its proper divisors (17589107).

231934093 is a wasteful number, since it uses less digits than its factorization.

231934093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1116.

The product of its (nonzero) digits is 17496, while the sum is 34.

The square root of 231934093 is about 15229.3825547853. The cubic root of 231934093 is about 614.4051736537.

The spelling of 231934093 in words is "two hundred thirty-one million, nine hundred thirty-four thousand, ninety-three".

Divisors: 1 23 37 449 607 851 10327 13961 16613 22459 272543 382099 516557 6268489 10084091 231934093