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5500031 = 10950459
BaseRepresentation
bin10100111110110001111111
3101100102121212
4110332301333
52402000111
6313515035
764515035
oct24766177
911312555
105500031
113117289
121a12a7b
1311a7574
14a32555
1573998b
hex53ec7f

5500031 has 4 divisors (see below), whose sum is σ = 5550600. Its totient is φ = 5449464.

The previous prime is 5500021. The next prime is 5500067. The reversal of 5500031 is 1300055.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1300055 = 5260011.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-5500031 is a prime.

It is a super-2 number, since 2×55000312 = 60500682001922, 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 = 5499979 and 5500015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5500021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25121 + ... + 25338.

It is an arithmetic number, because the mean of its divisors is an integer number (1387650).

Almost surely, 25500031 is an apocalyptic number.

5500031 is a deficient number, since it is larger than the sum of its proper divisors (50569).

5500031 is a wasteful number, since it uses less digits than its factorization.

5500031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50568.

The product of its (nonzero) digits is 75, while the sum is 14.

The square root of 5500031 is about 2345.2144891246. The cubic root of 5500031 is about 176.5177484045.

Adding to 5500031 its reverse (1300055), we get a palindrome (6800086).

The spelling of 5500031 in words is "five million, five hundred thousand, thirty-one".

Divisors: 1 109 50459 5500031