Base | Representation |
---|---|
bin | 1000001000100… |
… | …10000100001000 |
3 | 11202101111221002 |
4 | 10010102010020 |
5 | 114431401212 |
6 | 10434234132 |
7 | 1455646313 |
oct | 404220410 |
9 | 152344832 |
10 | 68231432 |
11 | 35573315 |
12 | 1aa25948 |
13 | 1119c839 |
14 | 90c197a |
15 | 5ecbac2 |
hex | 4112108 |
68231432 has 64 divisors (see below), whose sum is σ = 145584000. Its totient is φ = 29804544.
The previous prime is 68231419. The next prime is 68231437. The reversal of 68231432 is 23413286.
It is a Harshad number since it is a multiple of its sum of digits (29).
It is a junction number, because it is equal to n+sod(n) for n = 68231395 and 68231404.
It is not an unprimeable number, because it can be changed into a prime (68231437) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101048 + ... + 101720.
It is an arithmetic number, because the mean of its divisors is an integer number (2274750).
Almost surely, 268231432 is an apocalyptic number.
It is an amenable number.
68231432 is an abundant number, since it is smaller than the sum of its proper divisors (77352568).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68231432 is a wasteful number, since it uses less digits than its factorization.
68231432 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 750 (or 746 counting only the distinct ones).
The product of its digits is 6912, while the sum is 29.
The square root of 68231432 is about 8260.2319580021. The cubic root of 68231432 is about 408.6280376306.
The spelling of 68231432 in words is "sixty-eight million, two hundred thirty-one thousand, four hundred thirty-two".
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