Base | Representation |
---|---|
bin | 1000001100010… |
… | …10000000000111 |
3 | 11210022110211000 |
4 | 10012022000013 |
5 | 120043111240 |
6 | 10452544343 |
7 | 1463063466 |
oct | 406120007 |
9 | 153273730 |
10 | 68722695 |
11 | 35879418 |
12 | 1b0220b3 |
13 | 11312322 |
14 | 91ac9dd |
15 | 6077430 |
hex | 418a007 |
68722695 has 32 divisors (see below), whose sum is σ = 124784640. Its totient is φ = 35868960.
The previous prime is 68722681. The next prime is 68722697. The reversal of 68722695 is 59622786.
It is not a de Polignac number, because 68722695 - 26 = 68722631 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (45).
It is a self number, because there is not a number n which added to its sum of digits gives 68722695.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68722697) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 930 + ... + 11760.
It is an arithmetic number, because the mean of its divisors is an integer number (3899520).
Almost surely, 268722695 is an apocalyptic number.
68722695 is a deficient number, since it is larger than the sum of its proper divisors (56061945).
68722695 is a wasteful number, since it uses less digits than its factorization.
68722695 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 10892 (or 10886 counting only the distinct ones).
The product of its digits is 362880, while the sum is 45.
The square root of 68722695 is about 8289.9152589155. The cubic root of 68722695 is about 409.6063940163.
Subtracting from 68722695 its reverse (59622786), we obtain a palindrome (9099909).
The spelling of 68722695 in words is "sixty-eight million, seven hundred twenty-two thousand, six hundred ninety-five".
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