Base | Representation |
---|---|
bin | 1110101011100… |
… | …10101000000101 |
3 | 22120201211000120 |
4 | 13111302220011 |
5 | 223011343101 |
6 | 20115332153 |
7 | 3023532234 |
oct | 725625005 |
9 | 276654016 |
10 | 123152901 |
11 | 63575663 |
12 | 352b1059 |
13 | 1c68c051 |
14 | 124dab1b |
15 | ac29b36 |
hex | 7572a05 |
123152901 has 16 divisors (see below), whose sum is σ = 167090688. Its totient is φ = 80665200.
The previous prime is 123152891. The next prime is 123152929. The reversal of 123152901 is 109251321.
It is not a de Polignac number, because 123152901 - 213 = 123144709 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (123152951) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 126346 + ... + 127316.
It is an arithmetic number, because the mean of its divisors is an integer number (10443168).
Almost surely, 2123152901 is an apocalyptic number.
It is an amenable number.
123152901 is a deficient number, since it is larger than the sum of its proper divisors (43937787).
123152901 is an equidigital number, since it uses as much as digits as its factorization.
123152901 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1672.
The product of its (nonzero) digits is 540, while the sum is 24.
The square root of 123152901 is about 11097.4276749164. The cubic root of 123152901 is about 497.5249700016.
The spelling of 123152901 in words is "one hundred twenty-three million, one hundred fifty-two thousand, nine hundred one".
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