Base | Representation |
---|---|
bin | 1000001010101… |
… | …01011001100000 |
3 | 11202220112020220 |
4 | 10011111121200 |
5 | 120014212412 |
6 | 10444203040 |
7 | 1461205353 |
oct | 405253140 |
9 | 152815226 |
10 | 68507232 |
11 | 35741552 |
12 | 1ab39480 |
13 | 11268231 |
14 | 915429a |
15 | 603368c |
hex | 4155660 |
68507232 has 48 divisors (see below), whose sum is σ = 182532672. Its totient is φ = 22492800.
The previous prime is 68507221. The next prime is 68507237. The reversal of 68507232 is 23270586.
It is a tau number, because it is divible by the number of its divisors (48).
It is a junction number, because it is equal to n+sod(n) for n = 68507193 and 68507202.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68507237) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1107 + ... + 11757.
It is an arithmetic number, because the mean of its divisors is an integer number (3802764).
Almost surely, 268507232 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 68507232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91266336).
68507232 is an abundant number, since it is smaller than the sum of its proper divisors (114025440).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68507232 is a wasteful number, since it uses less digits than its factorization.
68507232 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 10731 (or 10723 counting only the distinct ones).
The product of its (nonzero) digits is 20160, while the sum is 33.
The square root of 68507232 is about 8276.9095681903. The cubic root of 68507232 is about 409.1778727086.
The spelling of 68507232 in words is "sixty-eight million, five hundred seven thousand, two hundred thirty-two".
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