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231012122 = 211411931327
BaseRepresentation
bin11011100010011…
…11011100011010
3121002200122001112
431301033130122
5433114341442
634531220322
75503366505
oct1561173432
9532618045
10231012122
11109444910
12654476a2
1338b24b83
142297613c
1515433082
hexdc4f71a

231012122 has 32 divisors (see below), whose sum is σ = 389539584. Its totient is φ = 101836800.

The previous prime is 231012113. The next prime is 231012143. The reversal of 231012122 is 221210132.

It is a happy number.

231012122 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 231012097 and 231012106.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 173423 + ... + 174749.

It is an arithmetic number, because the mean of its divisors is an integer number (12173112).

Almost surely, 2231012122 is an apocalyptic number.

231012122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

231012122 is a deficient number, since it is larger than the sum of its proper divisors (158527462).

231012122 is a wasteful number, since it uses less digits than its factorization.

231012122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1574.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 231012122 is about 15199.0829328614. The cubic root of 231012122 is about 613.5899765456.

Adding to 231012122 its reverse (221210132), we get a palindrome (452222254).

The spelling of 231012122 in words is "two hundred thirty-one million, twelve thousand, one hundred twenty-two".

Divisors: 1 2 11 22 41 82 193 386 451 902 1327 2123 2654 4246 7913 14597 15826 29194 54407 87043 108814 174086 256111 512222 598477 1196954 2817221 5634442 10500551 21001102 115506061 231012122