Base | Representation |
---|---|
bin | 100110111110111… |
… | …1001101110000101 |
3 | 10101011100222121010 |
4 | 1031331321232011 |
5 | 10134331312322 |
6 | 333444312433 |
7 | 44262302301 |
oct | 11575715605 |
9 | 3334328533 |
10 | 1308072837 |
11 | 611411535 |
12 | 3060a2719 |
13 | 17b0035c6 |
14 | c5a22d01 |
15 | 79c8720c |
hex | 4df79b85 |
1308072837 has 16 divisors (see below), whose sum is σ = 1876969152. Its totient is φ = 807294720.
The previous prime is 1308072817. The next prime is 1308072847. The reversal of 1308072837 is 7382708031.
It is not a de Polignac number, because 1308072837 - 27 = 1308072709 is a prime.
It is a super-2 number, since 2×13080728372 = 3422109093794457138, which contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 1308072795 and 1308072804.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1308072817) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 207123 + ... + 213344.
It is an arithmetic number, because the mean of its divisors is an integer number (117310572).
Almost surely, 21308072837 is an apocalyptic number.
1308072837 is a gapful number since it is divisible by the number (17) formed by its first and last digit.
It is an amenable number.
1308072837 is a deficient number, since it is larger than the sum of its proper divisors (568896315).
1308072837 is a wasteful number, since it uses less digits than its factorization.
1308072837 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 420548.
The product of its (nonzero) digits is 56448, while the sum is 39.
The square root of 1308072837 is about 36167.2895998580. The cubic root of 1308072837 is about 1093.6473604604.
The spelling of 1308072837 in words is "one billion, three hundred eight million, seventy-two thousand, eight hundred thirty-seven".
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