Base | Representation |
---|---|
bin | 10010111001101011… |
… | …111001010001000101 |
3 | 1221101101220222212222 |
4 | 102321223321101011 |
5 | 313031030122101 |
6 | 13153511422125 |
7 | 1315635010211 |
oct | 227153712105 |
9 | 57341828788 |
10 | 20295160901 |
11 | 86750a8854 |
12 | 3b24984945 |
13 | 1bb589cc62 |
14 | da7599941 |
15 | 7dbb2101b |
hex | 4b9af9445 |
20295160901 has 4 divisors (see below), whose sum is σ = 20305224972. Its totient is φ = 20285096832.
The previous prime is 20295160871. The next prime is 20295160939. The reversal of 20295160901 is 10906159202.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10906159202 = 2 ⋅5453079601.
It can be written as a sum of positive squares in 2 ways, for example, as 11502348001 + 8792812900 = 107249^2 + 93770^2 .
It is a cyclic number.
It is not a de Polignac number, because 20295160901 - 226 = 20228052037 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20295160801) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5029010 + ... + 5033043.
It is an arithmetic number, because the mean of its divisors is an integer number (5076306243).
Almost surely, 220295160901 is an apocalyptic number.
It is an amenable number.
20295160901 is a deficient number, since it is larger than the sum of its proper divisors (10064071).
20295160901 is a wasteful number, since it uses less digits than its factorization.
20295160901 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 10064070.
The product of its (nonzero) digits is 9720, while the sum is 35.
The spelling of 20295160901 in words is "twenty billion, two hundred ninety-five million, one hundred sixty thousand, nine hundred one".
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