Base | Representation |
---|---|
bin | 100110010010… |
… | …1000010111000 |
3 | 1101202220021200 |
4 | 1030211002320 |
5 | 20114342210 |
6 | 1554134200 |
7 | 332426523 |
oct | 114450270 |
9 | 41686250 |
10 | 20074680 |
11 | 1037144a |
12 | 6881360 |
13 | 420b412 |
14 | 2947bba |
15 | 1b680c0 |
hex | 13250b8 |
20074680 has 48 divisors (see below), whose sum is σ = 65243880. Its totient is φ = 5353152.
The previous prime is 20074669. The next prime is 20074711. The reversal of 20074680 is 8647002.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27522 + ... + 28241.
Almost surely, 220074680 is an apocalyptic number.
20074680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
20074680 is an abundant number, since it is smaller than the sum of its proper divisors (45169200).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20074680 is a wasteful number, since it uses less digits than its factorization.
20074680 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 55780 (or 55773 counting only the distinct ones).
The product of its (nonzero) digits is 2688, while the sum is 27.
The square root of 20074680 is about 4480.4776531080. The cubic root of 20074680 is about 271.7791965261.
The spelling of 20074680 in words is "twenty million, seventy-four thousand, six hundred eighty".
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