Base | Representation |
---|---|
bin | 1101010101010… |
… | …0001010000111 |
3 | 10220012222202221 |
4 | 3111110022013 |
5 | 103303403424 |
6 | 5314313211 |
7 | 1246206565 |
oct | 325241207 |
9 | 126188687 |
10 | 55919239 |
11 | 29623a52 |
12 | 16888807 |
13 | b77b70c |
14 | 75d8a35 |
15 | 4d989e4 |
hex | 3554287 |
55919239 has 8 divisors (see below), whose sum is σ = 59820768. Its totient is φ = 52085760.
The previous prime is 55919219. The next prime is 55919287. The reversal of 55919239 is 93291955.
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 55919239 - 25 = 55919207 is a prime.
It is a super-2 number, since 2×559192392 = 6253922580678242, 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 = 55919195 and 55919204.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (55919209) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15307 + ... + 18604.
It is an arithmetic number, because the mean of its divisors is an integer number (7477596).
Almost surely, 255919239 is an apocalyptic number.
55919239 is a deficient number, since it is larger than the sum of its proper divisors (3901529).
55919239 is a wasteful number, since it uses less digits than its factorization.
55919239 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 34025.
The product of its digits is 109350, while the sum is 43.
The square root of 55919239 is about 7477.9167553537. The cubic root of 55919239 is about 382.4022311242.
The spelling of 55919239 in words is "fifty-five million, nine hundred nineteen thousand, two hundred thirty-nine".
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