Base | Representation |
---|---|
bin | 10010101111011100… |
… | …001011110000010000 |
3 | 1220221102111001010020 |
4 | 102233130023300100 |
5 | 312203024121120 |
6 | 13124451303440 |
7 | 1311446655060 |
oct | 225734136020 |
9 | 56842431106 |
10 | 20123270160 |
11 | 8597074794 |
12 | 3a972aab80 |
13 | 1b890a8166 |
14 | d8c8133a0 |
15 | 7cb9ba640 |
hex | 4af70bc10 |
20123270160 has 80 divisors (see below), whose sum is σ = 71293877376. Its totient is φ = 4599604224.
The previous prime is 20123270117. The next prime is 20123270173. The reversal of 20123270160 is 6107232102.
It is a tau number, because it is divible by the number of its divisors (80).
It is a Harshad number since it is a multiple of its sum of digits (24).
It is a self number, because there is not a number n which added to its sum of digits gives 20123270160.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5987389 + ... + 5990748.
Almost surely, 220123270160 is an apocalyptic number.
20123270160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
20123270160 is an abundant number, since it is smaller than the sum of its proper divisors (51170607216).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20123270160 is a wasteful number, since it uses less digits than its factorization.
20123270160 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 11978160 (or 11978154 counting only the distinct ones).
The product of its (nonzero) digits is 1008, while the sum is 24.
The spelling of 20123270160 in words is "twenty billion, one hundred twenty-three million, two hundred seventy thousand, one hundred sixty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.070 sec. • engine limits •