Base | Representation |
---|---|
bin | 1110111010001… |
… | …11001100010111 |
3 | 22201100022201220 |
4 | 13131013030113 |
5 | 224004302101 |
6 | 20224421423 |
7 | 3046044561 |
oct | 735071427 |
9 | 281308656 |
10 | 125072151 |
11 | 64666616 |
12 | 35a77873 |
13 | 1cbb17b9 |
14 | 1287a331 |
15 | aea8636 |
hex | 7747317 |
125072151 has 4 divisors (see below), whose sum is σ = 166762872. Its totient is φ = 83381432.
The previous prime is 125072113. The next prime is 125072161. The reversal of 125072151 is 151270521.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 151270521 = 3 ⋅50423507.
It is a cyclic number.
It is not a de Polignac number, because 125072151 - 210 = 125071127 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (125072161) 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, 20845356 + ... + 20845361.
It is an arithmetic number, because the mean of its divisors is an integer number (41690718).
Almost surely, 2125072151 is an apocalyptic number.
125072151 is a deficient number, since it is larger than the sum of its proper divisors (41690721).
125072151 is an equidigital number, since it uses as much as digits as its factorization.
125072151 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 41690720.
The product of its (nonzero) digits is 700, while the sum is 24.
The square root of 125072151 is about 11183.5661128282. The cubic root of 125072151 is about 500.0961828299.
The spelling of 125072151 in words is "one hundred twenty-five million, seventy-two thousand, one hundred fifty-one".
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