Base | Representation |
---|---|
bin | 11100001110010100… |
… | …00101110101010101 |
3 | 1110010000001022002202 |
4 | 32013022011311111 |
5 | 222013013041011 |
6 | 10543322014245 |
7 | 1044330611255 |
oct | 160712056525 |
9 | 43100038082 |
10 | 15152471381 |
11 | 64761a2023 |
12 | 2b2a647385 |
13 | 1576301ac8 |
14 | a3a593965 |
15 | 5da3d123b |
hex | 387285d55 |
15152471381 has 2 divisors, whose sum is σ = 15152471382. Its totient is φ = 15152471380.
The previous prime is 15152471359. The next prime is 15152471387. The reversal of 15152471381 is 18317425151.
15152471381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 14979312100 + 173159281 = 122390^2 + 13159^2 .
It is an emirp because it is prime and its reverse (18317425151) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 15152471381 - 214 = 15152454997 is a prime.
It is a super-2 number, since 2×151524713812 (a number of 21 digits) contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (15152471387) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7576235690 + 7576235691.
It is an arithmetic number, because the mean of its divisors is an integer number (7576235691).
Almost surely, 215152471381 is an apocalyptic number.
It is an amenable number.
15152471381 is a deficient number, since it is larger than the sum of its proper divisors (1).
15152471381 is an equidigital number, since it uses as much as digits as its factorization.
15152471381 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 33600, while the sum is 38.
The spelling of 15152471381 in words is "fifteen billion, one hundred fifty-two million, four hundred seventy-one thousand, three hundred eighty-one".
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