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31080914 = 2109142573
BaseRepresentation
bin111011010010…
…0000111010010
32011111001222222
41312210013102
530424042124
63030101042
7525116624
oct166440722
964431888
1031080914
11165a9607
12a4aa782
136592c97
1441b0c14
152ade25e
hex1da41d2

31080914 has 8 divisors (see below), whose sum is σ = 47049420. Its totient is φ = 15397776.

The previous prime is 31080901. The next prime is 31080919. The reversal of 31080914 is 41908013.

It can be written as a sum of positive squares in 2 ways, for example, as 31080625 + 289 = 5575^2 + 17^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (31080919) 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, 71069 + ... + 71504.

Almost surely, 231080914 is an apocalyptic number.

31080914 is a deficient number, since it is larger than the sum of its proper divisors (15968506).

31080914 is a wasteful number, since it uses less digits than its factorization.

31080914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142684.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 31080914 is about 5575.0259192223. The cubic root of 31080914 is about 314.4111414168.

Adding to 31080914 its reverse (41908013), we get a palindrome (72988927).

The spelling of 31080914 in words is "thirty-one million, eighty thousand, nine hundred fourteen".

Divisors: 1 2 109 218 142573 285146 15540457 31080914