Base | Representation |
---|---|
bin | 1100001110011100001… |
… | …00001011110011011011 |
3 | 1111011021022222210011010 |
4 | 12013032010023303123 |
5 | 23340300132444011 |
6 | 520551013105003 |
7 | 42230462564601 |
oct | 6071604136333 |
9 | 1434238883133 |
10 | 420069031131 |
11 | 152172020542 |
12 | 694b4328163 |
13 | 307c64057a9 |
14 | 1648d6d7871 |
15 | add874d1a6 |
hex | 61ce10bcdb |
420069031131 has 8 divisors (see below), whose sum is σ = 561916446784. Its totient is φ = 279133818120.
The previous prime is 420069031093. The next prime is 420069031139. The reversal of 420069031131 is 131130960024.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 420069031131 - 210 = 420069030107 is a prime.
It is a super-2 number, since 2×4200690311312 (a number of 24 digits) contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (420069031139) 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, 228049585 + ... + 228051426.
It is an arithmetic number, because the mean of its divisors is an integer number (70239555848).
Almost surely, 2420069031131 is an apocalyptic number.
420069031131 is a deficient number, since it is larger than the sum of its proper divisors (141847415653).
420069031131 is a wasteful number, since it uses less digits than its factorization.
420069031131 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 456101321.
The product of its (nonzero) digits is 3888, while the sum is 30.
Adding to 420069031131 its reverse (131130960024), we get a palindrome (551199991155).
The spelling of 420069031131 in words is "four hundred twenty billion, sixty-nine million, thirty-one thousand, one hundred thirty-one".
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