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2831422 = 211179719
BaseRepresentation
bin1010110011010000111110
312022211222111
422303100332
51211101142
6140404234
733031606
oct12632076
95284874
102831422
111664320
12b4667a
137819c9
14539c06
153ade17
hex2b343e

2831422 has 16 divisors (see below), whose sum is σ = 4665600. Its totient is φ = 1278040.

The previous prime is 2831417. The next prime is 2831429. The reversal of 2831422 is 2241382.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a d-powerful number, because it can be written as 2 + 85 + 311 + 1 + 43 + 219 + 221 .

It is a junction number, because it is equal to n+sod(n) for n = 2831393 and 2831402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2831429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3579 + ... + 4297.

It is an arithmetic number, because the mean of its divisors is an integer number (291600).

22831422 is an apocalyptic number.

2831422 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2831422 is a deficient number, since it is larger than the sum of its proper divisors (1834178).

2831422 is a wasteful number, since it uses less digits than its factorization.

2831422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 911.

The product of its digits is 768, while the sum is 22.

The square root of 2831422 is about 1682.6829766774. The cubic root of 2831422 is about 141.4712532179.

The spelling of 2831422 in words is "two million, eight hundred thirty-one thousand, four hundred twenty-two".

Divisors: 1 2 11 22 179 358 719 1438 1969 3938 7909 15818 128701 257402 1415711 2831422