Base | Representation |
---|---|
bin | 1111100000010… |
… | …11110111110111 |
3 | 100001202100022112 |
4 | 13300023313313 |
5 | 231244301210 |
6 | 20523521235 |
7 | 3136410551 |
oct | 760136767 |
9 | 301670275 |
10 | 130072055 |
11 | 67471073 |
12 | 3768921b |
13 | 20c42519 |
14 | 133bc4d1 |
15 | b644d05 |
hex | 7c0bdf7 |
130072055 has 4 divisors (see below), whose sum is σ = 156086472. Its totient is φ = 104057640.
The previous prime is 130072051. The next prime is 130072067. The reversal of 130072055 is 550270031.
It is a semiprime because it is the product of two primes.
It is not a de Polignac number, because 130072055 - 22 = 130072051 is a prime.
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 130072055.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (130072051) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13007201 + ... + 13007210.
It is an arithmetic number, because the mean of its divisors is an integer number (39021618).
Almost surely, 2130072055 is an apocalyptic number.
130072055 is a deficient number, since it is larger than the sum of its proper divisors (26014417).
130072055 is an equidigital number, since it uses as much as digits as its factorization.
130072055 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 26014416.
The product of its (nonzero) digits is 1050, while the sum is 23.
The square root of 130072055 is about 11404.9136340439. The cubic root of 130072055 is about 506.6732784706.
The spelling of 130072055 in words is "one hundred thirty million, seventy-two thousand, fifty-five".
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