Base | Representation |
---|---|
bin | 11011100101111… |
… | …11111100110000 |
3 | 121010120001012000 |
4 | 31302333330300 |
5 | 433224113234 |
6 | 34545134000 |
7 | 5510326143 |
oct | 1562777460 |
9 | 533501160 |
10 | 231472944 |
11 | 10972a05a |
12 | 6562a300 |
13 | 38c56851 |
14 | 22a5605a |
15 | 154c4899 |
hex | dcbff30 |
231472944 has 80 divisors (see below), whose sum is σ = 666624000. Its totient is φ = 76901184.
The previous prime is 231472933. The next prime is 231472951. The reversal of 231472944 is 449274132.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a junction number, because it is equal to n+sod(n) for n = 231472899 and 231472908.
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, 164757 + ... + 166155.
It is an arithmetic number, because the mean of its divisors is an integer number (8332800).
Almost surely, 2231472944 is an apocalyptic number.
231472944 is a gapful number since it is divisible by the number (24) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 231472944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (333312000).
231472944 is an abundant number, since it is smaller than the sum of its proper divisors (435151056).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
231472944 is a wasteful number, since it uses less digits than its factorization.
231472944 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1799 (or 1787 counting only the distinct ones).
The product of its digits is 48384, while the sum is 36.
The square root of 231472944 is about 15214.2349133961. The cubic root of 231472944 is about 613.9977011164.
The spelling of 231472944 in words is "two hundred thirty-one million, four hundred seventy-two thousand, nine hundred forty-four".
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