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31114103 = 157198179
BaseRepresentation
bin111011010110…
…0001101110111
32011112202112012
41312230031313
530431122403
63030514435
7525315446
oct166541567
964482465
1031114103
1116621539
12a505a1b
1365a5117
1441bcd5d
152ae8ed8
hex1dac377

31114103 has 4 divisors (see below), whose sum is σ = 31312440. Its totient is φ = 30915768.

The previous prime is 31114099. The next prime is 31114157. The reversal of 31114103 is 30141113.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30141113 = 233129361.

It is a cyclic number.

It is not a de Polignac number, because 31114103 - 22 = 31114099 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31114163) 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, 98933 + ... + 99246.

It is an arithmetic number, because the mean of its divisors is an integer number (7828110).

Almost surely, 231114103 is an apocalyptic number.

31114103 is a deficient number, since it is larger than the sum of its proper divisors (198337).

31114103 is a wasteful number, since it uses less digits than its factorization.

31114103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198336.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 31114103 is about 5578.0017031191. The cubic root of 31114103 is about 314.5230137095.

Adding to 31114103 its reverse (30141113), we get a palindrome (61255216).

The spelling of 31114103 in words is "thirty-one million, one hundred fourteen thousand, one hundred three".

Divisors: 1 157 198179 31114103