Base | Representation |
---|---|
bin | 1111100111110… |
… | …11100111011101 |
3 | 100010121020100112 |
4 | 13303323213131 |
5 | 232022212140 |
6 | 21000535405 |
7 | 3150640523 |
oct | 763734735 |
9 | 303536315 |
10 | 131054045 |
11 | 67a81931 |
12 | 37a81565 |
13 | 211c7495 |
14 | 13596313 |
15 | b78ac65 |
hex | 7cfb9dd |
131054045 has 16 divisors (see below), whose sum is σ = 165456000. Its totient is φ = 99505728.
The previous prime is 131054041. The next prime is 131054051. The reversal of 131054045 is 540450131.
It is not a de Polignac number, because 131054045 - 22 = 131054041 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 131054045.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (131054041) 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, 896 + ... + 16214.
It is an arithmetic number, because the mean of its divisors is an integer number (10341000).
Almost surely, 2131054045 is an apocalyptic number.
It is an amenable number.
131054045 is a deficient number, since it is larger than the sum of its proper divisors (34401955).
131054045 is a wasteful number, since it uses less digits than its factorization.
131054045 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 15412.
The product of its (nonzero) digits is 1200, while the sum is 23.
The square root of 131054045 is about 11447.8838655884. The cubic root of 131054045 is about 507.9451407579.
It can be divided in two parts, 1310 and 54045, that added together give a palindrome (55355).
The spelling of 131054045 in words is "one hundred thirty-one million, fifty-four thousand, forty-five".
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