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231012124 = 22731614363
BaseRepresentation
bin11011100010011…
…11011100011100
3121002200122001121
431301033130130
5433114341444
634531220324
75503366510
oct1561173434
9532618047
10231012124
11109444912
12654476a4
1338b24b85
1422976140
1515433084
hexdc4f71c

231012124 has 48 divisors (see below), whose sum is σ = 484857856. Its totient is φ = 94219200.

The previous prime is 231012113. The next prime is 231012143. The reversal of 231012124 is 421210132.

231012124 is digitally balanced in base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

231012124 is strictly pandigital in base 9.

It is a junction number, because it is equal to n+sod(n) for n = 231012098 and 231012107.

It is a congruent number.

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, 50767 + ... + 55129.

Almost surely, 2231012124 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231012124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (242428928).

231012124 is an abundant number, since it is smaller than the sum of its proper divisors (253845732).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231012124 is a wasteful number, since it uses less digits than its factorization.

231012124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4466 (or 4464 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 231012124 is about 15199.0829986549. The cubic root of 231012124 is about 613.5899783163.

Adding to 231012124 its reverse (421210132), we get a palindrome (652222256).

The spelling of 231012124 in words is "two hundred thirty-one million, twelve thousand, one hundred twenty-four".

Divisors: 1 2 4 7 14 28 31 61 62 122 124 217 244 427 434 854 868 1708 1891 3782 4363 7564 8726 13237 17452 26474 30541 52948 61082 122164 135253 266143 270506 532286 541012 946771 1064572 1863001 1893542 3726002 3787084 7452004 8250433 16500866 33001732 57753031 115506062 231012124