Base | Representation |
---|---|
bin | 10010111010001001… |
… | …101011110100000000 |
3 | 1221101221121202010000 |
4 | 102322021223310000 |
5 | 313040030020422 |
6 | 13154351040000 |
7 | 1316061253455 |
oct | 227211536400 |
9 | 57357552100 |
10 | 20302970112 |
11 | 8679551a47 |
12 | 3b27510000 |
13 | 1bb73a55a9 |
14 | da862d82c |
15 | 7dc664cac |
hex | 4ba26bd00 |
20302970112 has 90 divisors (see below), whose sum is σ = 60539845058. Its totient is φ = 6767649792.
The previous prime is 20302970041. The next prime is 20302970131. The reversal of 20302970112 is 21107920302.
It can be written as a sum of positive squares in only one way, i.e., 18361334016 + 1941636096 = 135504^2 + 44064^2 .
It is a Harshad number since it is a multiple of its sum of digits (27).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 468823 + ... + 510294.
Almost surely, 220302970112 is an apocalyptic number.
It is an amenable number.
20302970112 is an abundant number, since it is smaller than the sum of its proper divisors (40236874946).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20302970112 is an frugal number, since it uses more digits than its factorization.
20302970112 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 979145 (or 979122 counting only the distinct ones).
The product of its (nonzero) digits is 1512, while the sum is 27.
The spelling of 20302970112 in words is "twenty billion, three hundred two million, nine hundred seventy thousand, one hundred twelve".
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