Base | Representation |
---|---|
bin | 101111100011001011… |
… | …0010111110110001111 |
3 | 100202120100202010112122 |
4 | 1133012112113312033 |
5 | 3133111133021143 |
6 | 114524250323155 |
7 | 10243300456025 |
oct | 1370626276617 |
9 | 322510663478 |
10 | 102112001423 |
11 | 3a33a621023 |
12 | 179591294bb |
13 | 9824240123 |
14 | 4d29752715 |
15 | 29c9872c68 |
hex | 17c6597d8f |
102112001423 has 4 divisors (see below), whose sum is σ = 108118589760. Its totient is φ = 96105413088.
The previous prime is 102112001393. The next prime is 102112001429. The reversal of 102112001423 is 324100211201.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 102112001423 - 214 = 102111985039 is a prime.
It is a super-2 number, since 2×1021120014232 (a number of 23 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 6006588319 = 102112001423 / (1 + 0 + 2 + 1 + 1 + 2 + 0 + 0 + 1 + 4 + 2 + 3).
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (102112001429) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3003294143 + ... + 3003294176.
It is an arithmetic number, because the mean of its divisors is an integer number (27029647440).
Almost surely, 2102112001423 is an apocalyptic number.
102112001423 is a deficient number, since it is larger than the sum of its proper divisors (6006588337).
102112001423 is an equidigital number, since it uses as much as digits as its factorization.
102112001423 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6006588336.
The product of its (nonzero) digits is 96, while the sum is 17.
Adding to 102112001423 its reverse (324100211201), we get a palindrome (426212212624).
The spelling of 102112001423 in words is "one hundred two billion, one hundred twelve million, one thousand, four hundred twenty-three".
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