Search a number
-
+
31414812 = 223111318307
BaseRepresentation
bin111011111010…
…1101000011100
32012010001000120
41313311220130
531020233222
63041154540
7531010242
oct167655034
965101016
1031414812
1116807460
12a62ba50
13667bc60
14425a792
152b5815c
hex1df5a1c

31414812 has 48 divisors (see below), whose sum is σ = 86120832. Its totient is φ = 8786880.

The previous prime is 31414787. The next prime is 31414819. The reversal of 31414812 is 21841413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31414819) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7438 + ... + 10869.

It is an arithmetic number, because the mean of its divisors is an integer number (1794184).

Almost surely, 231414812 is an apocalyptic number.

It is an amenable number.

31414812 is an abundant number, since it is smaller than the sum of its proper divisors (54706020).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31414812 is a wasteful number, since it uses less digits than its factorization.

31414812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18338 (or 18336 counting only the distinct ones).

The product of its digits is 768, while the sum is 24.

The square root of 31414812 is about 5604.8917919974. The cubic root of 31414812 is about 315.5330254767.

The spelling of 31414812 in words is "thirty-one million, four hundred fourteen thousand, eight hundred twelve".

Divisors: 1 2 3 4 6 11 12 13 22 26 33 39 44 52 66 78 132 143 156 286 429 572 858 1716 18307 36614 54921 73228 109842 201377 219684 237991 402754 475982 604131 713973 805508 951964 1208262 1427946 2416524 2617901 2855892 5235802 7853703 10471604 15707406 31414812