Base | Representation |
---|---|
bin | 111001010010101001… |
… | …0010101010111010111 |
3 | 102202120022122211022202 |
4 | 1302211102111113113 |
5 | 4003432211143111 |
6 | 132304205315115 |
7 | 11613564600365 |
oct | 1624522252727 |
9 | 382508584282 |
10 | 123032131031 |
11 | 481a5481037 |
12 | 1ba17265a9b |
13 | b7a943b844 |
14 | 5d51d14635 |
15 | 3301294b3b |
hex | 1ca54955d7 |
123032131031 has 8 divisors (see below), whose sum is σ = 123298700160. Its totient is φ = 122765852088.
The previous prime is 123032130983. The next prime is 123032131037. The reversal of 123032131031 is 130131230321.
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 123032131031 - 26 = 123032130967 is a prime.
It is a super-2 number, since 2×1230321310312 (a number of 23 digits) contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 123032130994 and 123032131012.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (123032131037) 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, 787310 + ... + 930548.
It is an arithmetic number, because the mean of its divisors is an integer number (15412337520).
Almost surely, 2123032131031 is an apocalyptic number.
123032131031 is a deficient number, since it is larger than the sum of its proper divisors (266569129).
123032131031 is an equidigital number, since it uses as much as digits as its factorization.
123032131031 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 145093.
The product of its (nonzero) digits is 324, while the sum is 20.
Adding to 123032131031 its reverse (130131230321), we get a palindrome (253163361352).
The spelling of 123032131031 in words is "one hundred twenty-three billion, thirty-two million, one hundred thirty-one thousand, thirty-one".
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