Base | Representation |
---|---|
bin | 1110111010110… |
… | …11011010111101 |
3 | 22201111112101120 |
4 | 13131123122331 |
5 | 224014430010 |
6 | 20230301153 |
7 | 3046541253 |
oct | 735333275 |
9 | 281445346 |
10 | 125155005 |
11 | 64712898 |
12 | 35ab77b9 |
13 | 1cc10421 |
14 | 1289c5d3 |
15 | aec2e70 |
hex | 775b6bd |
125155005 has 8 divisors (see below), whose sum is σ = 200248032. Its totient is φ = 66749328.
The previous prime is 125154943. The next prime is 125155007. The reversal of 125155005 is 500551521.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 125155005 - 26 = 125154941 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (125155007) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4171819 + ... + 4171848.
It is an arithmetic number, because the mean of its divisors is an integer number (25031004).
Almost surely, 2125155005 is an apocalyptic number.
125155005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
125155005 is a deficient number, since it is larger than the sum of its proper divisors (75093027).
125155005 is an equidigital number, since it uses as much as digits as its factorization.
125155005 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 8343675.
The product of its (nonzero) digits is 1250, while the sum is 24.
The square root of 125155005 is about 11187.2697741674. The cubic root of 125155005 is about 500.2065879644.
The spelling of 125155005 in words is "one hundred twenty-five million, one hundred fifty-five thousand, five".
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