Base | Representation |
---|---|
bin | 1000111011001… |
… | …10100011110100 |
3 | 12012212201221012 |
4 | 10131212203310 |
5 | 123131301410 |
6 | 11232411352 |
7 | 1566242624 |
oct | 435464364 |
9 | 165781835 |
10 | 74868980 |
11 | 3929719a |
12 | 210a6b58 |
13 | 12684a94 |
14 | 9d2c884 |
15 | 688d605 |
hex | 47668f4 |
74868980 has 12 divisors (see below), whose sum is σ = 157224900. Its totient is φ = 29947584.
The previous prime is 74868967. The next prime is 74869001. The reversal of 74868980 is 8986847.
It can be written as a sum of positive squares in 2 ways, for example, as 45859984 + 29008996 = 6772^2 + 5386^2 .
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1871705 + ... + 1871744.
It is an arithmetic number, because the mean of its divisors is an integer number (13102075).
Almost surely, 274868980 is an apocalyptic number.
It is an amenable number.
74868980 is an abundant number, since it is smaller than the sum of its proper divisors (82355920).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
74868980 is a wasteful number, since it uses less digits than its factorization.
74868980 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3743458 (or 3743456 counting only the distinct ones).
The product of its (nonzero) digits is 774144, while the sum is 50.
The square root of 74868980 is about 8652.6862880842. The cubic root of 74868980 is about 421.4706194075.
The spelling of 74868980 in words is "seventy-four million, eight hundred sixty-eight thousand, nine hundred eighty".
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