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2194223040 = 263352291109
BaseRepresentation
bin1000001011001001…
…0010111111000000
312122220211002011000
42002302102333000
513443210114130
61001421452000
7105242405502
oct20262227700
95586732130
102194223040
11a26644279
12512a11000
1328c78b039
1416b5b5d72
15cc97a260
hex82c92fc0

2194223040 has 224 divisors, whose sum is σ = 7781544000. Its totient is φ = 582045696.

The previous prime is 2194222993. The next prime is 2194223041. The reversal of 2194223040 is 403224912.

It is a super-2 number, since 2×21942230402 = 9629229498533683200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 2194222995 and 2194223013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2194223041) 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 31 ways as a sum of consecutive naturals, for example, 1978006 + ... + 1979114.

Almost surely, 22194223040 is an apocalyptic number.

2194223040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2194223040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3890772000).

2194223040 is an abundant number, since it is smaller than the sum of its proper divisors (5587320960).

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

2194223040 is a wasteful number, since it uses less digits than its factorization.

2194223040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1364 (or 1348 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 2194223040 is about 46842.5345172526. The cubic root of 2194223040 is about 1299.4520452016.

Adding to 2194223040 its reverse (403224912), we get a palindrome (2597447952).

The spelling of 2194223040 in words is "two billion, one hundred ninety-four million, two hundred twenty-three thousand, forty".