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49219 = 83593
BaseRepresentation
bin1100000001000011
32111111221
430001003
53033334
61015511
7263332
oct140103
974457
1049219
1133a85
1224597
1319531
1413d19
15e8b4
hexc043

49219 has 4 divisors (see below), whose sum is σ = 49896. Its totient is φ = 48544.

The previous prime is 49211. The next prime is 49223. The reversal of 49219 is 91294.

Subtracting from 49219 its sum of digits (25), we obtain a palindrome (49194).

It can be divided in two parts, 49 and 219, that multiplied together give a triangular number (10731 = T146).

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 49219 - 23 = 49211 is a prime.

It is a super-2 number, since 2×492192 = 4845019922, which contains 22 as substring.

It is a Duffinian number.

49219 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 49193 and 49202.

It is not an unprimeable number, because it can be changed into a prime (49211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 214 + ... + 379.

It is an arithmetic number, because the mean of its divisors is an integer number (12474).

249219 is an apocalyptic number.

49219 is a deficient number, since it is larger than the sum of its proper divisors (677).

49219 is an equidigital number, since it uses as much as digits as its factorization.

49219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 676.

The product of its digits is 648, while the sum is 25.

The square root of 49219 is about 221.8535553017. The cubic root of 49219 is about 36.6474922704.

The spelling of 49219 in words is "forty-nine thousand, two hundred nineteen".

Divisors: 1 83 593 49219