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31459043 = 7111273217
BaseRepresentation
bin111100000000…
…0011011100011
32012012021200202
41320000123203
531023142133
63042135415
7531253220
oct170003343
965167622
1031459043
1116837710
12a65156b
136696125
14426c947
152b662e8
hex1e006e3

31459043 has 16 divisors (see below), whose sum is σ = 39542784. Its totient is φ = 24312960.

The previous prime is 31459031. The next prime is 31459063. The reversal of 31459043 is 34095413.

It is not a de Polignac number, because 31459043 - 28 = 31458787 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31458997 and 31459015.

It is not an unprimeable number, because it can be changed into a prime (31459063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8171 + ... + 11387.

It is an arithmetic number, because the mean of its divisors is an integer number (2471424).

Almost surely, 231459043 is an apocalyptic number.

31459043 is a deficient number, since it is larger than the sum of its proper divisors (8083741).

31459043 is a wasteful number, since it uses less digits than its factorization.

31459043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3362.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 31459043 is about 5608.8361537845. The cubic root of 31459043 is about 315.6810426642.

The spelling of 31459043 in words is "thirty-one million, four hundred fifty-nine thousand, forty-three".

Divisors: 1 7 11 77 127 889 1397 3217 9779 22519 35387 247709 408559 2859913 4494149 31459043