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3111444 = 2232712347
BaseRepresentation
bin1011110111101000010100
312212002002200
423313220110
51244031234
6150404500
735306160
oct13675024
95762080
103111444
111835746
121060730
1384c2bb
145adca0
15416d99
hex2f7a14

3111444 has 36 divisors (see below), whose sum is σ = 8989344. Its totient is φ = 888912.

The previous prime is 3111431. The next prime is 3111457. The reversal of 3111444 is 4441113.

3111444 is digitally balanced in base 8, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3111431) and next prime (3111457).

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nude number because it is divisible by every one of its digits.

3111444 is strictly pandigital in base 8.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5922 + ... + 6425.

It is an arithmetic number, because the mean of its divisors is an integer number (249704).

Almost surely, 23111444 is an apocalyptic number.

It is an amenable number.

3111444 is an abundant number, since it is smaller than the sum of its proper divisors (5877900).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3111444 is a wasteful number, since it uses less digits than its factorization.

3111444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12364 (or 12359 counting only the distinct ones).

The product of its digits is 192, while the sum is 18.

The square root of 3111444 is about 1763.9285699824. The cubic root of 3111444 is about 145.9891779055.

Adding to 3111444 its reverse (4441113), we get a palindrome (7552557).

The spelling of 3111444 in words is "three million, one hundred eleven thousand, four hundred forty-four".

Divisors: 1 2 3 4 6 7 9 12 14 18 21 28 36 42 63 84 126 252 12347 24694 37041 49388 74082 86429 111123 148164 172858 222246 259287 345716 444492 518574 777861 1037148 1555722 3111444