Base | Representation |
---|---|
bin | 101000110001100… |
… | …0000010001000111 |
3 | 10112100101020101212 |
4 | 1101203000101013 |
5 | 10300220140011 |
6 | 343431442035 |
7 | 45621630020 |
oct | 12143002107 |
9 | 3470336355 |
10 | 1368130631 |
11 | 64230187a |
12 | 32222631b |
13 | 18a5a096a |
14 | cd9b7c47 |
15 | 8019c08b |
hex | 518c0447 |
1368130631 has 16 divisors (see below), whose sum is σ = 1591142208. Its totient is φ = 1152057600.
The previous prime is 1368130619. The next prime is 1368130637. The reversal of 1368130631 is 1360318631.
It is a cyclic number.
It is not a de Polignac number, because 1368130631 - 226 = 1301021767 is a prime.
It is a super-2 number, since 2×13681306312 = 3743562846960916322, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1368130637) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 502931 + ... + 505643.
It is an arithmetic number, because the mean of its divisors is an integer number (99446388).
Almost surely, 21368130631 is an apocalyptic number.
1368130631 is a deficient number, since it is larger than the sum of its proper divisors (223011577).
1368130631 is a wasteful number, since it uses less digits than its factorization.
1368130631 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3962.
The product of its (nonzero) digits is 7776, while the sum is 32.
The square root of 1368130631 is about 36988.2499045305. The cubic root of 1368130631 is about 1110.1351541189.
The spelling of 1368130631 in words is "one billion, three hundred sixty-eight million, one hundred thirty thousand, six hundred thirty-one".
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