Base | Representation |
---|---|
bin | 100100000001011… |
… | …1110000011011101 |
3 | 10010020110020211120 |
4 | 1020002332003131 |
5 | 4433414104023 |
6 | 315535241153 |
7 | 41645050350 |
oct | 11002760335 |
9 | 3106406746 |
10 | 1208738013 |
11 | 57033483a |
12 | 2989791b9 |
13 | 1635637c2 |
14 | b6766297 |
15 | 711b48e3 |
hex | 480be0dd |
1208738013 has 16 divisors (see below), whose sum is σ = 1844881920. Its totient is φ = 689584176.
The previous prime is 1208737993. The next prime is 1208738033. The reversal of 1208738013 is 3108378021.
It is an interprime number because it is at equal distance from previous prime (1208737993) and next prime (1208738033).
It is not a de Polignac number, because 1208738013 - 217 = 1208606941 is a prime.
It is a super-2 number, since 2×12087380132 = 2922095168142376338, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1208738033) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33495 + ... + 59492.
It is an arithmetic number, because the mean of its divisors is an integer number (115305120).
Almost surely, 21208738013 is an apocalyptic number.
It is an amenable number.
1208738013 is a deficient number, since it is larger than the sum of its proper divisors (636143907).
1208738013 is an equidigital number, since it uses as much as digits as its factorization.
1208738013 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 93616.
The product of its (nonzero) digits is 8064, while the sum is 33.
The square root of 1208738013 is about 34766.9097418796. The cubic root of 1208738013 is about 1065.2316461443.
The spelling of 1208738013 in words is "one billion, two hundred eight million, seven hundred thirty-eight thousand, thirteen".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.070 sec. • engine limits •