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31056011 = 710094397
BaseRepresentation
bin111011001111…
…0000010001011
32011102210211122
41312132002023
530422243021
63025345455
7524654210
oct166360213
964383748
1031056011
1116591928
12a49828b
13658484c
1441a5b07
152ad6bab
hex1d9e08b

31056011 has 8 divisors (see below), whose sum is σ = 35535840. Its totient is φ = 26587008.

The previous prime is 31055989. The next prime is 31056029. The reversal of 31056011 is 11065013.

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

It is a de Polignac number, because none of the positive numbers 2k-31056011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31056031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4865 + ... + 9261.

It is an arithmetic number, because the mean of its divisors is an integer number (4441980).

Almost surely, 231056011 is an apocalyptic number.

31056011 is a deficient number, since it is larger than the sum of its proper divisors (4479829).

31056011 is a wasteful number, since it uses less digits than its factorization.

31056011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5413.

The product of its (nonzero) digits is 90, while the sum is 17.

The square root of 31056011 is about 5572.7920291358. The cubic root of 31056011 is about 314.3271469678.

The spelling of 31056011 in words is "thirty-one million, fifty-six thousand, eleven".

Divisors: 1 7 1009 4397 7063 30779 4436573 31056011