Base | Representation |
---|---|
bin | 100000100110100010… |
… | …0001010001110011111 |
3 | 20200201021201002002002 |
4 | 1001031010022032133 |
5 | 2121341134202311 |
6 | 52055132552515 |
7 | 5025654455444 |
oct | 1011504121637 |
9 | 220637632062 |
10 | 70012412831 |
11 | 27768200009 |
12 | 1169b02273b |
13 | 67a9ba251a |
14 | 35625279cb |
15 | 1c4b76393b |
hex | 104d10a39f |
70012412831 has 2 divisors, whose sum is σ = 70012412832. Its totient is φ = 70012412830.
The previous prime is 70012412809. The next prime is 70012412837. The reversal of 70012412831 is 13821421007.
It is a strong prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-70012412831 is a prime.
It is a super-2 number, since 2×700124128312 (a number of 22 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 70012412794 and 70012412803.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (70012412837) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35006206415 + 35006206416.
It is an arithmetic number, because the mean of its divisors is an integer number (35006206416).
Almost surely, 270012412831 is an apocalyptic number.
70012412831 is a deficient number, since it is larger than the sum of its proper divisors (1).
70012412831 is an equidigital number, since it uses as much as digits as its factorization.
70012412831 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 2688, while the sum is 29.
Adding to 70012412831 its reverse (13821421007), we get a palindrome (83833833838).
The spelling of 70012412831 in words is "seventy billion, twelve million, four hundred twelve thousand, eight hundred thirty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.068 sec. • engine limits •