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2138226 = 231720963
BaseRepresentation
bin1000001010000001110010
311000122002120
420022001302
51021410401
6113455110
724113616
oct10120162
94018076
102138226
111230532
12871496
1359b32c
143d9346
152c3836
hex20a072

2138226 has 16 divisors (see below), whose sum is σ = 4528224. Its totient is φ = 670784.

The previous prime is 2138221. The next prime is 2138231. The reversal of 2138226 is 6228312.

It is an interprime number because it is at equal distance from previous prime (2138221) and next prime (2138231).

It is a d-powerful number, because it can be written as 29 + 1 + 32 + 8 + 215 + 221 + 65 .

It is a junction number, because it is equal to n+sod(n) for n = 2138196 and 2138205.

It is not an unprimeable number, because it can be changed into a prime (2138221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10380 + ... + 10583.

It is an arithmetic number, because the mean of its divisors is an integer number (283014).

22138226 is an apocalyptic number.

2138226 is an abundant number, since it is smaller than the sum of its proper divisors (2389998).

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

2138226 is a wasteful number, since it uses less digits than its factorization.

2138226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20985.

The product of its digits is 1152, while the sum is 24.

The square root of 2138226 is about 1462.2674174035. The cubic root of 2138226 is about 128.8302556779.

The spelling of 2138226 in words is "two million, one hundred thirty-eight thousand, two hundred twenty-six".

Divisors: 1 2 3 6 17 34 51 102 20963 41926 62889 125778 356371 712742 1069113 2138226