Base | Representation |
---|---|
bin | 10010101100010010… |
… | …000101001111111011 |
3 | 1220210201210101120220 |
4 | 102230102011033323 |
5 | 312100443243202 |
6 | 13115315551123 |
7 | 1310234440155 |
oct | 225422051773 |
9 | 56721711526 |
10 | 20070290427 |
11 | 856a179290 |
12 | 3a815bb4a3 |
13 | 1b7b1186c5 |
14 | d85781ad5 |
15 | 7c7002abc |
hex | 4ac4853fb |
20070290427 has 16 divisors (see below), whose sum is σ = 29199139200. Its totient is φ = 12161316800.
The previous prime is 20070290407. The next prime is 20070290483. The reversal of 20070290427 is 72409207002.
It is a cyclic number.
It is not a de Polignac number, because 20070290427 - 26 = 20070290363 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (33).
It is not an unprimeable number, because it can be changed into a prime (20070290407) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107824 + ... + 227522.
It is an arithmetic number, because the mean of its divisors is an integer number (1824946200).
Almost surely, 220070290427 is an apocalyptic number.
20070290427 is a deficient number, since it is larger than the sum of its proper divisors (9128848773).
20070290427 is a wasteful number, since it uses less digits than its factorization.
20070290427 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 124794.
The product of its (nonzero) digits is 14112, while the sum is 33.
Adding to 20070290427 its reverse (72409207002), we get a palindrome (92479497429).
The spelling of 20070290427 in words is "twenty billion, seventy million, two hundred ninety thousand, four hundred twenty-seven".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.064 sec. • engine limits •