Base | Representation |
---|---|
bin | 1000001110001… |
… | …11111100010010 |
3 | 11210210100211120 |
4 | 10013013330102 |
5 | 120124221102 |
6 | 10502223110 |
7 | 1465201245 |
oct | 407077422 |
9 | 153710746 |
10 | 68976402 |
11 | 35a31aa0 |
12 | 1b124a96 |
13 | 113a0951 |
14 | 923725c |
15 | 60c76bc |
hex | 41c7f12 |
68976402 has 32 divisors (see below), whose sum is σ = 157040640. Its totient is φ = 19992720.
The previous prime is 68976389. The next prime is 68976407. The reversal of 68976402 is 20467986.
It is not an unprimeable number, because it can be changed into a prime (68976407) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21202 + ... + 24237.
It is an arithmetic number, because the mean of its divisors is an integer number (4907520).
Almost surely, 268976402 is an apocalyptic number.
68976402 is an abundant number, since it is smaller than the sum of its proper divisors (88064238).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68976402 is a wasteful number, since it uses less digits than its factorization.
68976402 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 45478.
The product of its (nonzero) digits is 145152, while the sum is 42.
The square root of 68976402 is about 8305.2033087697. The cubic root of 68976402 is about 410.1098297872.
It can be divided in two parts, 68976 and 402, that added together give a triangular number (69378 = T372).
The spelling of 68976402 in words is "sixty-eight million, nine hundred seventy-six thousand, four hundred two".
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