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5111144 = 23638893
BaseRepresentation
bin10011011111110101101000
3100121200011122
4103133311220
52302024034
6301314412
761305203
oct23376550
910550148
105111144
112981095
121865a08
13109c55c
1497093a
156ae62e
hex4dfd68

5111144 has 8 divisors (see below), whose sum is σ = 9583410. Its totient is φ = 2555568.

The previous prime is 5111137. The next prime is 5111149. The reversal of 5111144 is 4411115.

It can be written as a sum of positive squares in only one way, i.e., 4368100 + 743044 = 2090^2 + 862^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×51111442 = 52247585977472, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5111149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 319439 + ... + 319454.

Almost surely, 25111144 is an apocalyptic number.

It is an amenable number.

5111144 is a deficient number, since it is larger than the sum of its proper divisors (4472266).

5111144 is a wasteful number, since it uses less digits than its factorization.

5111144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 638899 (or 638895 counting only the distinct ones).

The product of its digits is 80, while the sum is 17.

The square root of 5111144 is about 2260.7839348332. The cubic root of 5111144 is about 172.2553445524.

Adding to 5111144 its reverse (4411115), we get a palindrome (9522259).

The spelling of 5111144 in words is "five million, one hundred eleven thousand, one hundred forty-four".

Divisors: 1 2 4 8 638893 1277786 2555572 5111144