Base | Representation |
---|---|
bin | 110100100001110101001000… |
… | …111101101000010100000001 |
3 | 1010021222121022102021110101121 |
4 | 310201311020331220110001 |
5 | 220240041023310000001 |
6 | 2135202334020232241 |
7 | 66442606520346052 |
oct | 6441651075502401 |
9 | 1107877272243347 |
10 | 231023220000001 |
11 | 6767a440a21a40 |
12 | 21ab1a20b3b681 |
13 | 9bba51c4c3520 |
14 | 4109825212729 |
15 | 1ba969dd996a1 |
hex | d21d48f68501 |
231023220000001 has 32 divisors (see below), whose sum is σ = 283215337332480. Its totient is φ = 185434782931200.
The previous prime is 231023219999981. The next prime is 231023220000019. The reversal of 231023220000001 is 100000022320132.
It is not a de Polignac number, because 231023220000001 - 223 = 231023211611393 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 231023220000001.
It is not an unprimeable number, because it can be changed into a prime (231023220000701) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 378130395 + ... + 378740863.
It is an arithmetic number, because the mean of its divisors is an integer number (8850479291640).
Almost surely, 2231023220000001 is an apocalyptic number.
It is an amenable number.
231023220000001 is a deficient number, since it is larger than the sum of its proper divisors (52192117332479).
231023220000001 is a wasteful number, since it uses less digits than its factorization.
231023220000001 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 725577.
The product of its (nonzero) digits is 144, while the sum is 16.
Adding to 231023220000001 its reverse (100000022320132), we get a palindrome (331023242320133).
The spelling of 231023220000001 in words is "two hundred thirty-one trillion, twenty-three billion, two hundred twenty million, one", and thus it is an aban number.
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.102 sec. • engine limits •