Base | Representation |
---|---|
bin | 11100010111101010… |
… | …01110100011001111 |
3 | 1110022110121021200021 |
4 | 32023311032203033 |
5 | 222143101410033 |
6 | 10555202443011 |
7 | 1046302261462 |
oct | 161365164317 |
9 | 43273537607 |
10 | 15230888143 |
11 | 6506491769 |
12 | 2b50963467 |
13 | 1589629663 |
14 | a46b672d9 |
15 | 5e2220b2d |
hex | 38bd4e8cf |
15230888143 has 16 divisors (see below), whose sum is σ = 15749686656. Its totient is φ = 14719914720.
The previous prime is 15230888137. The next prime is 15230888147. The reversal of 15230888143 is 34188803251.
It is a cyclic number.
It is not a de Polignac number, because 15230888143 - 29 = 15230887631 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (43).
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 15230888143.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (15230888147) 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, 5432380 + ... + 5435182.
It is an arithmetic number, because the mean of its divisors is an integer number (984355416).
Almost surely, 215230888143 is an apocalyptic number.
15230888143 is a deficient number, since it is larger than the sum of its proper divisors (518798513).
15230888143 is a wasteful number, since it uses less digits than its factorization.
15230888143 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4134.
The product of its (nonzero) digits is 184320, while the sum is 43.
The spelling of 15230888143 in words is "fifteen billion, two hundred thirty million, eight hundred eighty-eight thousand, one hundred forty-three".
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