Base | Representation |
---|---|
bin | 111100010100100… |
… | …000110000101111 |
3 | 2121112021102210000 |
4 | 330110200300233 |
5 | 4033033310111 |
6 | 244230515343 |
7 | 34035641364 |
oct | 7424406057 |
9 | 2545242700 |
10 | 1012010031 |
11 | 47a28712a |
12 | 242b05b53 |
13 | 131883906 |
14 | 9859646b |
15 | 5dca4c56 |
hex | 3c520c2f |
1012010031 has 20 divisors (see below), whose sum is σ = 1546930792. Its totient is φ = 658981008.
The previous prime is 1012009993. The next prime is 1012010039. The reversal of 1012010031 is 1300102101.
It is not a de Polignac number, because 1012010031 - 26 = 1012009967 is a prime.
It is a super-2 number, since 2×10120100312 = 2048328605689241922, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (9).
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 1012009995 and 1012010022.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1012010039) by changing a digit.
It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 141796 + ... + 148761.
Almost surely, 21012010031 is an apocalyptic number.
1012010031 is a deficient number, since it is larger than the sum of its proper divisors (534920761).
1012010031 is an equidigital number, since it uses as much as digits as its factorization.
1012010031 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 290612 (or 290603 counting only the distinct ones).
The product of its (nonzero) digits is 6, while the sum is 9.
The square root of 1012010031 is about 31812.1051016747. The cubic root of 1012010031 is about 1003.9874229918.
Adding to 1012010031 its reverse (1300102101), we get a palindrome (2312112132).
The spelling of 1012010031 in words is "one billion, twelve million, ten thousand, thirty-one".
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