Base | Representation |
---|---|
bin | 111111101101111… |
… | …1100100001110101 |
3 | 12112000002021212110 |
4 | 1333123330201311 |
5 | 13334314012440 |
6 | 552053241233 |
7 | 103660655106 |
oct | 17733744165 |
9 | 5460067773 |
10 | 2138032245 |
11 | 9a79552a8 |
12 | 4b8033219 |
13 | 280c45b4b |
14 | 163d4a3ad |
15 | c7a7b080 |
hex | 7f6fc875 |
2138032245 has 16 divisors (see below), whose sum is σ = 3422607552. Its totient is φ = 1139698560.
The previous prime is 2138032231. The next prime is 2138032261. The reversal of 2138032245 is 5422308312.
It is not a de Polignac number, because 2138032245 - 25 = 2138032213 is a prime.
It is a Curzon number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5536 + ... + 65625.
It is an arithmetic number, because the mean of its divisors is an integer number (213912972).
Almost surely, 22138032245 is an apocalyptic number.
It is an amenable number.
2138032245 is a deficient number, since it is larger than the sum of its proper divisors (1284575307).
2138032245 is a wasteful number, since it uses less digits than its factorization.
2138032245 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 73172.
The product of its (nonzero) digits is 11520, while the sum is 30.
The square root of 2138032245 is about 46238.8607666755. The cubic root of 2138032245 is about 1288.2636424949.
The spelling of 2138032245 in words is "two billion, one hundred thirty-eight million, thirty-two thousand, two hundred forty-five".
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