Base | Representation |
---|---|
bin | 10010111000101010… |
… | …10100101010110001 |
3 | 222011121100222212221 |
4 | 21130111110222301 |
5 | 131231042400040 |
6 | 4354030321041 |
7 | 506153213551 |
oct | 113425245261 |
9 | 28147328787 |
10 | 10139028145 |
11 | 4333242a04 |
12 | 1b6b659181 |
13 | c5774734c |
14 | 6c27d3161 |
15 | 3e51c174a |
hex | 25c554ab1 |
10139028145 has 8 divisors (see below), whose sum is σ = 12180649320. Its totient is φ = 8102012160.
The previous prime is 10139028143. The next prime is 10139028149. The reversal of 10139028145 is 54182093101.
It can be written as a sum of positive squares in 4 ways, for example, as 1845647521 + 8293380624 = 42961^2 + 91068^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 10139028145 - 21 = 10139028143 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 10139028145.
It is not an unprimeable number, because it can be changed into a prime (10139028143) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1146450 + ... + 1155259.
It is an arithmetic number, because the mean of its divisors is an integer number (1522581165).
Almost surely, 210139028145 is an apocalyptic number.
It is an amenable number.
10139028145 is a deficient number, since it is larger than the sum of its proper divisors (2041621175).
10139028145 is an equidigital number, since it uses as much as digits as its factorization.
10139028145 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2302595.
The product of its (nonzero) digits is 8640, while the sum is 34.
The spelling of 10139028145 in words is "ten billion, one hundred thirty-nine million, twenty-eight thousand, one hundred forty-five".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.065 sec. • engine limits •