Base | Representation |
---|---|
bin | 100101011010000… |
… | …1101011010101111 |
3 | 10020110212210021212 |
4 | 1022310031122233 |
5 | 10032312403211 |
6 | 324315145035 |
7 | 43051012322 |
oct | 11264153257 |
9 | 3213783255 |
10 | 1255200431 |
11 | 594589731 |
12 | 2b044517b |
13 | 170080964 |
14 | bc9bc7b9 |
15 | 752e138b |
hex | 4ad0d6af |
1255200431 has 8 divisors (see below), whose sum is σ = 1280913264. Its totient is φ = 1229562880.
The previous prime is 1255200407. The next prime is 1255200437. The reversal of 1255200431 is 1340025521.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-1255200431 is a prime.
It is a super-2 number, since 2×12552004312 = 3151056243965171522, which contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 1255200397 and 1255200406.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1255200437) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15500 + ... + 52446.
It is an arithmetic number, because the mean of its divisors is an integer number (160114158).
Almost surely, 21255200431 is an apocalyptic number.
1255200431 is a deficient number, since it is larger than the sum of its proper divisors (25712833).
1255200431 is an equidigital number, since it uses as much as digits as its factorization.
1255200431 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 37641.
The product of its (nonzero) digits is 1200, while the sum is 23.
The square root of 1255200431 is about 35428.8079251899. The cubic root of 1255200431 is about 1078.7091433195.
Adding to 1255200431 its reverse (1340025521), we get a palindrome (2595225952).
The spelling of 1255200431 in words is "one billion, two hundred fifty-five million, two hundred thousand, four hundred thirty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.068 sec. • engine limits •