Base | Representation |
---|---|
bin | 101001010101111… |
… | …1111111111101110 |
3 | 10120200101102020100 |
4 | 1102223333333232 |
5 | 10320120003110 |
6 | 345353531530 |
7 | 46243365243 |
oct | 12253777756 |
9 | 3520342210 |
10 | 1387266030 |
11 | 652091557 |
12 | 328713ba6 |
13 | 191540697 |
14 | d23595ca |
15 | 81bcbbc0 |
hex | 52afffee |
1387266030 has 48 divisors (see below), whose sum is σ = 3613053600. Its totient is φ = 369305664.
The previous prime is 1387266017. The next prime is 1387266059. The reversal of 1387266030 is 306627831.
It is a happy number.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41044 + ... + 66776.
It is an arithmetic number, because the mean of its divisors is an integer number (75271950).
Almost surely, 21387266030 is an apocalyptic number.
1387266030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
1387266030 is an abundant number, since it is smaller than the sum of its proper divisors (2225787570).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1387266030 is a wasteful number, since it uses less digits than its factorization.
1387266030 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 26345 (or 26342 counting only the distinct ones).
The product of its (nonzero) digits is 36288, while the sum is 36.
The square root of 1387266030 is about 37246.0203243246. The cubic root of 1387266030 is about 1115.2868560206.
The spelling of 1387266030 in words is "one billion, three hundred eighty-seven million, two hundred sixty-six thousand, thirty".
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