Base | Representation |
---|---|
bin | 10010010110111… |
… | …01101010011001 |
3 | 101201210000022122 |
4 | 21023131222121 |
5 | 303411000100 |
6 | 23140431025 |
7 | 3546656444 |
oct | 1113355231 |
9 | 351700278 |
10 | 154000025 |
11 | 79a24553 |
12 | 436a8475 |
13 | 25b9c79a |
14 | 1664a65b |
15 | d7be985 |
hex | 92dda99 |
154000025 has 12 divisors (see below), whose sum is σ = 202193532. Its totient is φ = 115952640.
The previous prime is 154000003. The next prime is 154000027. The reversal of 154000025 is 520000451.
It can be written as a sum of positive squares in 6 ways, for example, as 760384 + 153239641 = 872^2 + 12379^2 .
It is not a de Polignac number, because 154000025 - 26 = 153999961 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (17).
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 153999967 and 154000012.
It is not an unprimeable number, because it can be changed into a prime (154000027) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 180752 + ... + 181601.
It is an arithmetic number, because the mean of its divisors is an integer number (16849461).
Almost surely, 2154000025 is an apocalyptic number.
It is an amenable number.
154000025 is a deficient number, since it is larger than the sum of its proper divisors (48193507).
154000025 is a wasteful number, since it uses less digits than its factorization.
154000025 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 362380 (or 362375 counting only the distinct ones).
The product of its (nonzero) digits is 200, while the sum is 17.
The square root of 154000025 is about 12409.6746532695. The cubic root of 154000025 is about 536.0108701015.
Adding to 154000025 its reverse (520000451), we get a palindrome (674000476).
The spelling of 154000025 in words is "one hundred fifty-four million, twenty-five", and thus it is an aban number.
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