Base | Representation |
---|---|
bin | 10101100011011001… |
… | …010101100111110111 |
3 | 2012201211112220020221 |
4 | 111203121111213313 |
5 | 334343430014111 |
6 | 14344222235211 |
7 | 1446330231040 |
oct | 254331254767 |
9 | 65654486227 |
10 | 23142423031 |
11 | 98a6326a52 |
12 | 459a425b07 |
13 | 224a737350 |
14 | 11977a38c7 |
15 | 906a94371 |
hex | 5636559f7 |
23142423031 has 16 divisors (see below), whose sum is σ = 28491980608. Its totient is φ = 18304704000.
The previous prime is 23142423011. The next prime is 23142423037. The reversal of 23142423031 is 13032424132.
It is a cyclic number.
It is not a de Polignac number, because 23142423031 - 29 = 23142422519 is a prime.
It is a super-2 number, since 2×231424230312 (a number of 22 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 23142422987 and 23142423005.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (23142423037) 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, 261871 + ... + 338911.
It is an arithmetic number, because the mean of its divisors is an integer number (1780748788).
Almost surely, 223142423031 is an apocalyptic number.
23142423031 is a deficient number, since it is larger than the sum of its proper divisors (5349557577).
23142423031 is a wasteful number, since it uses less digits than its factorization.
23142423031 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 80362.
The product of its (nonzero) digits is 3456, while the sum is 25.
Adding to 23142423031 its reverse (13032424132), we get a palindrome (36174847163).
The spelling of 23142423031 in words is "twenty-three billion, one hundred forty-two million, four hundred twenty-three thousand, thirty-one".
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