Base | Representation |
---|---|
bin | 111111100000100… |
… | …1010100110110111 |
3 | 12111111212121221020 |
4 | 1333001022212313 |
5 | 13331014341043 |
6 | 551242552223 |
7 | 103544206020 |
oct | 17701124667 |
9 | 5444777836 |
10 | 2131012023 |
11 | 9a399a968 |
12 | 4b5808673 |
13 | 27c65867a |
14 | 16303dc47 |
15 | c7140e83 |
hex | 7f04a9b7 |
2131012023 has 32 divisors (see below), whose sum is σ = 3339098112. Its totient is φ = 1183507200.
The previous prime is 2131012019. The next prime is 2131012057. The reversal of 2131012023 is 3202101312.
It is not a de Polignac number, because 2131012023 - 22 = 2131012019 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 2131011993 and 2131012011.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2131012063) 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, 228765 + ... + 237897.
It is an arithmetic number, because the mean of its divisors is an integer number (104346816).
Almost surely, 22131012023 is an apocalyptic number.
2131012023 is a deficient number, since it is larger than the sum of its proper divisors (1208086089).
2131012023 is a wasteful number, since it uses less digits than its factorization.
2131012023 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 9455.
The product of its (nonzero) digits is 72, while the sum is 15.
The square root of 2131012023 is about 46162.8857741801. The cubic root of 2131012023 is about 1286.8520932510.
Adding to 2131012023 its reverse (3202101312), we get a palindrome (5333113335).
It can be divided in two parts, 21310 and 12023, that added together give a palindrome (33333).
The spelling of 2131012023 in words is "two billion, one hundred thirty-one million, twelve thousand, twenty-three".
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