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31411214 = 215705607
BaseRepresentation
bin111011111010…
…0110000001110
32012002212002022
41313310300032
531020124324
63041130142
7530663612
oct167646016
965085068
1031411214
111680478a
12a629952
13667a423
144259342
152b5705e
hex1df4c0e

31411214 has 4 divisors (see below), whose sum is σ = 47116824. Its totient is φ = 15705606.

The previous prime is 31411201. The next prime is 31411229. The reversal of 31411214 is 41211413.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 31411192 and 31411201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7852802 + ... + 7852805.

It is an arithmetic number, because the mean of its divisors is an integer number (11779206).

Almost surely, 231411214 is an apocalyptic number.

31411214 is a deficient number, since it is larger than the sum of its proper divisors (15705610).

31411214 is a wasteful number, since it uses less digits than its factorization.

31411214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15705609.

The product of its digits is 96, while the sum is 17.

The square root of 31411214 is about 5604.5708131845. The cubic root of 31411214 is about 315.5209788115.

Adding to 31411214 its reverse (41211413), we get a palindrome (72622627).

The spelling of 31411214 in words is "thirty-one million, four hundred eleven thousand, two hundred fourteen".

Divisors: 1 2 15705607 31411214