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5105971 = 13392767
BaseRepresentation
bin10011011110100100110011
3100121102002001
4103132210303
52301342341
6301234431
761254133
oct23364463
910542061
105105971
112978212
121862a17
13109a0b0
1496cac3
156acd31
hex4de933

5105971 has 4 divisors (see below), whose sum is σ = 5498752. Its totient is φ = 4713192.

The previous prime is 5105957. The next prime is 5105981. The reversal of 5105971 is 1795015.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1795015 = 5359003.

It is a cyclic number.

It is not a de Polignac number, because 5105971 - 27 = 5105843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5105921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 196371 + ... + 196396.

It is an arithmetic number, because the mean of its divisors is an integer number (1374688).

Almost surely, 25105971 is an apocalyptic number.

5105971 is a deficient number, since it is larger than the sum of its proper divisors (392781).

5105971 is a wasteful number, since it uses less digits than its factorization.

5105971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392780.

The product of its (nonzero) digits is 1575, while the sum is 28.

The square root of 5105971 is about 2259.6395730293. The cubic root of 5105971 is about 172.1972115991.

The spelling of 5105971 in words is "five million, one hundred five thousand, nine hundred seventy-one".

Divisors: 1 13 392767 5105971