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231876 = 223319113
BaseRepresentation
bin111000100111000100
3102210002000
4320213010
524410001
64545300
71654011
oct704704
9383060
10231876
11149237
12b2230
1381708
1460708
1548a86
hex389c4

231876 has 48 divisors (see below), whose sum is σ = 638400. Its totient is φ = 72576.

The previous prime is 231871. The next prime is 231877. The reversal of 231876 is 678132.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231871) by changing a digit.

231876 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1996 + ... + 2108.

It is an arithmetic number, because the mean of its divisors is an integer number (13300).

2231876 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 231876, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (319200).

231876 is an abundant number, since it is smaller than the sum of its proper divisors (406524).

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

231876 is a wasteful number, since it uses less digits than its factorization.

231876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145 (or 137 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 231876 is about 481.5350454536. The cubic root of 231876 is about 61.4353872269.

It can be divided in two parts, 2 and 31876, that added together give a triangular number (31878 = T252).

The spelling of 231876 in words is "two hundred thirty-one thousand, eight hundred seventy-six".

Divisors: 1 2 3 4 6 9 12 18 19 27 36 38 54 57 76 108 113 114 171 226 228 339 342 452 513 678 684 1017 1026 1356 2034 2052 2147 3051 4068 4294 6102 6441 8588 12204 12882 19323 25764 38646 57969 77292 115938 231876