Search a number
-
+
2193415 = 57292161
BaseRepresentation
bin1000010111100000000111
311010102210121
420113200013
51030142130
6115002411
724433540
oct10274007
94112717
102193415
111268a44
12899407
135ba4a3
144114c7
152d4d7a
hex217807

2193415 has 16 divisors (see below), whose sum is σ = 3113280. Its totient is φ = 1451520.

The previous prime is 2193413. The next prime is 2193419. The reversal of 2193415 is 5143912.

It is not a de Polignac number, because 2193415 - 21 = 2193413 is a prime.

It is a super-2 number, since 2×21934152 = 9622138724450, which contains 22 as substring.

2193415 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2193415.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2193413) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66 + ... + 2095.

It is an arithmetic number, because the mean of its divisors is an integer number (194580).

22193415 is an apocalyptic number.

2193415 is a deficient number, since it is larger than the sum of its proper divisors (919865).

2193415 is a wasteful number, since it uses less digits than its factorization.

2193415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2202.

The product of its digits is 1080, while the sum is 25.

The square root of 2193415 is about 1481.0182308128. The cubic root of 2193415 is about 129.9292514451.

The spelling of 2193415 in words is "two million, one hundred ninety-three thousand, four hundred fifteen".

Divisors: 1 5 7 29 35 145 203 1015 2161 10805 15127 62669 75635 313345 438683 2193415