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31414142 = 2471791867
BaseRepresentation
bin111011111010…
…1011101111110
32012010000002202
41313311131332
531020223032
63041151502
7531005264
oct167653576
965100082
1031414142
1116806a01
12a62b592
13667b866
14425a434
152b57d62
hex1df577e

31414142 has 16 divisors (see below), whose sum is σ = 48418560. Its totient is φ = 15278808.

The previous prime is 31414133. The next prime is 31414153. The reversal of 31414142 is 24141413.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15893 + ... + 17759.

It is an arithmetic number, because the mean of its divisors is an integer number (3026160).

Almost surely, 231414142 is an apocalyptic number.

31414142 is a deficient number, since it is larger than the sum of its proper divisors (17004418).

31414142 is a wasteful number, since it uses less digits than its factorization.

31414142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2095.

The product of its digits is 384, while the sum is 20.

The square root of 31414142 is about 5604.8320224606. The cubic root of 31414142 is about 315.5307822819.

Adding to 31414142 its reverse (24141413), we get a palindrome (55555555).

The spelling of 31414142 in words is "thirty-one million, four hundred fourteen thousand, one hundred forty-two".

Divisors: 1 2 47 94 179 358 1867 3734 8413 16826 87749 175498 334193 668386 15707071 31414142