Base | Representation |
---|---|
bin | 110001111110… |
… | …101101111101 |
3 | 220122122111101 |
4 | 301332231331 |
5 | 11323230244 |
6 | 1144453101 |
7 | 216236050 |
oct | 61765575 |
9 | 26578441 |
10 | 13101949 |
11 | 7439763 |
12 | 447a191 |
13 | 2939743 |
14 | 1a50a97 |
15 | 123c0d4 |
hex | c7eb7d |
13101949 has 8 divisors (see below), whose sum is σ = 15035328. Its totient is φ = 11184000.
The previous prime is 13101943. The next prime is 13101983. The reversal of 13101949 is 94910131.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 13101949 - 211 = 13099901 is a prime.
It is a super-2 number, since 2×131019492 = 343322135197202, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13101943) 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, 1972 + ... + 5485.
It is an arithmetic number, because the mean of its divisors is an integer number (1879416).
Almost surely, 213101949 is an apocalyptic number.
It is an amenable number.
13101949 is a deficient number, since it is larger than the sum of its proper divisors (1933379).
13101949 is an equidigital number, since it uses as much as digits as its factorization.
13101949 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 7715.
The product of its (nonzero) digits is 972, while the sum is 28.
The square root of 13101949 is about 3619.6614482573. The cubic root of 13101949 is about 235.7465259500.
The spelling of 13101949 in words is "thirteen million, one hundred one thousand, nine hundred forty-nine".
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