Base | Representation |
---|---|
bin | 1000001110001… |
… | …11000111000011 |
3 | 11210210012011101 |
4 | 10013013013003 |
5 | 120124113440 |
6 | 10502155231 |
7 | 1465155310 |
oct | 407070703 |
9 | 153705141 |
10 | 68972995 |
11 | 35a2a483 |
12 | 1b122b17 |
13 | 1139c230 |
14 | 9235d07 |
15 | 60c669a |
hex | 41c71c3 |
68972995 has 64 divisors (see below), whose sum is σ = 111234816. Its totient is φ = 39813120.
The previous prime is 68972987. The next prime is 68973007. The reversal of 68972995 is 59927986.
68972995 = 4452 + 4462 + ... + 6652.
It is not a de Polignac number, because 68972995 - 23 = 68972987 is a prime.
It is an unprimeable number.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 286075 + ... + 286315.
It is an arithmetic number, because the mean of its divisors is an integer number (1738044).
Almost surely, 268972995 is an apocalyptic number.
68972995 is a gapful number since it is divisible by the number (65) formed by its first and last digit.
68972995 is a deficient number, since it is larger than the sum of its proper divisors (42261821).
68972995 is a wasteful number, since it uses less digits than its factorization.
68972995 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 320.
The product of its digits is 2449440, while the sum is 55.
The square root of 68972995 is about 8304.9981938589. The cubic root of 68972995 is about 410.1030773948.
The spelling of 68972995 in words is "sixty-eight million, nine hundred seventy-two thousand, nine hundred ninety-five".
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