Base | Representation |
---|---|
bin | 10010110100110111… |
… | …000110011101001111 |
3 | 1221011202121101110111 |
4 | 102310313012131033 |
5 | 312344314244211 |
6 | 13141500420451 |
7 | 1313632653640 |
oct | 226467063517 |
9 | 57152541414 |
10 | 20214212431 |
11 | 8633439a96 |
12 | 3b01847727 |
13 | 1ba1b99c5a |
14 | d9a9276c7 |
15 | 7d4981421 |
hex | 4b4dc674f |
20214212431 has 8 divisors (see below), whose sum is σ = 23106054944. Its totient is φ = 17323394400.
The previous prime is 20214212393. The next prime is 20214212441. The reversal of 20214212431 is 13421241202.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 20214212431 - 27 = 20214212303 is a prime.
It is a super-2 number, since 2×202142124312 (a number of 21 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20214212441) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 213360 + ... + 293173.
It is an arithmetic number, because the mean of its divisors is an integer number (2888256868).
Almost surely, 220214212431 is an apocalyptic number.
20214212431 is a deficient number, since it is larger than the sum of its proper divisors (2891842513).
20214212431 is an equidigital number, since it uses as much as digits as its factorization.
20214212431 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 512241.
The product of its (nonzero) digits is 768, while the sum is 22.
Adding to 20214212431 its reverse (13421241202), we get a palindrome (33635453633).
The spelling of 20214212431 in words is "twenty billion, two hundred fourteen million, two hundred twelve thousand, four hundred thirty-one".
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