Search a number
-
+
2198207 = 11237491
BaseRepresentation
bin1000011000101010111111
311010200101002
420120222333
51030320312
6115040515
724453524
oct10305277
94120332
102198207
111271600
128a013b
135bc71b
1441314b
152d64c2
hex218abf

2198207 has 12 divisors (see below), whose sum is σ = 2486568. Its totient is φ = 1940400.

The previous prime is 2198201. The next prime is 2198227. The reversal of 2198207 is 7028912.

It is a happy number.

It is not a de Polignac number, because 2198207 - 24 = 2198191 is a prime.

It is a super-2 number, since 2×21982072 = 9664228029698, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2198207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2198201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4232 + ... + 4722.

It is an arithmetic number, because the mean of its divisors is an integer number (207214).

22198207 is an apocalyptic number.

2198207 is a deficient number, since it is larger than the sum of its proper divisors (288361).

2198207 is a wasteful number, since it uses less digits than its factorization.

2198207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550 (or 539 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 2198207 is about 1482.6351540416. The cubic root of 2198207 is about 130.0238023478.

The spelling of 2198207 in words is "two million, one hundred ninety-eight thousand, two hundred seven".

Divisors: 1 11 37 121 407 491 4477 5401 18167 59411 199837 2198207