Base | Representation |
---|---|
bin | 1000001110010… |
… | …01100001101110 |
3 | 11210210200202000 |
4 | 10013021201232 |
5 | 120124423034 |
6 | 10502313130 |
7 | 1465226211 |
oct | 407114156 |
9 | 153720660 |
10 | 68982894 |
11 | 35a36962 |
12 | 1b1287a6 |
13 | 113a38a6 |
14 | 9239778 |
15 | 60c9599 |
hex | 41c986e |
68982894 has 16 divisors (see below), whose sum is σ = 153295440. Its totient is φ = 22994280.
The previous prime is 68982847. The next prime is 68982913. The reversal of 68982894 is 49828986.
It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 1277461 = 68982894 / (6 + 8 + 9 + 8 + 2 + 8 + 9 + 4).
It is a self number, because there is not a number n which added to its sum of digits gives 68982894.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 638677 + ... + 638784.
It is an arithmetic number, because the mean of its divisors is an integer number (9580965).
Almost surely, 268982894 is an apocalyptic number.
68982894 is an abundant number, since it is smaller than the sum of its proper divisors (84312546).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68982894 is a wasteful number, since it uses less digits than its factorization.
68982894 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1277472 (or 1277466 counting only the distinct ones).
The product of its digits is 1990656, while the sum is 54.
The square root of 68982894 is about 8305.5941388922. The cubic root of 68982894 is about 410.1226957791.
The spelling of 68982894 in words is "sixty-eight million, nine hundred eighty-two thousand, eight hundred ninety-four".
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