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5005631 = 15731883
BaseRepresentation
bin10011000110000100111111
3100102022102202
4103012010333
52240140011
6255142115
760355451
oct23060477
910368382
105005631
112909894
12181493b
131063517
149442d1
1568d23b
hex4c613f

5005631 has 4 divisors (see below), whose sum is σ = 5037672. Its totient is φ = 4973592.

The previous prime is 5005621. The next prime is 5005639. The reversal of 5005631 is 1365005.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1365005 = 5273001.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-5005631 is a prime.

It is a super-2 number, since 2×50056312 = 50112683416322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5005639) 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, 15785 + ... + 16098.

It is an arithmetic number, because the mean of its divisors is an integer number (1259418).

Almost surely, 25005631 is an apocalyptic number.

5005631 is a deficient number, since it is larger than the sum of its proper divisors (32041).

5005631 is a wasteful number, since it uses less digits than its factorization.

5005631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32040.

The product of its (nonzero) digits is 450, while the sum is 20.

The square root of 5005631 is about 2237.3267530694. The cubic root of 5005631 is about 171.0617630819.

The spelling of 5005631 in words is "five million, five thousand, six hundred thirty-one".

Divisors: 1 157 31883 5005631