Base | Representation |
---|---|
bin | 111100010101000… |
… | …001000000110011 |
3 | 2121112112010222121 |
4 | 330111001000303 |
5 | 4033102022011 |
6 | 244233415111 |
7 | 34040031460 |
oct | 7425010063 |
9 | 2545463877 |
10 | 1012142131 |
11 | 47a367400 |
12 | 242b6a497 |
13 | 1318cba90 |
14 | 985cc667 |
15 | 5dccde71 |
hex | 3c541033 |
1012142131 has 24 divisors (see below), whose sum is σ = 1369270112. Its totient is φ = 728006400.
The previous prime is 1012142129. The next prime is 1012142149. The reversal of 1012142131 is 1312412101.
It is not a de Polignac number, because 1012142131 - 21 = 1012142129 is a prime.
It is a super-2 number, since 2×10121421312 = 2048863386690442322, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (1012142101) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34950 + ... + 56971.
Almost surely, 21012142131 is an apocalyptic number.
1012142131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.
1012142131 is a deficient number, since it is larger than the sum of its proper divisors (357127981).
1012142131 is a wasteful number, since it uses less digits than its factorization.
1012142131 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 91963 (or 91952 counting only the distinct ones).
The product of its (nonzero) digits is 48, while the sum is 16.
The square root of 1012142131 is about 31814.1812875956. The cubic root of 1012142131 is about 1004.0311053547.
Adding to 1012142131 its reverse (1312412101), we get a palindrome (2324554232).
The spelling of 1012142131 in words is "one billion, twelve million, one hundred forty-two thousand, one hundred thirty-one".
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