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2199013092 = 223261083697
BaseRepresentation
bin1000001100010010…
…0100011011100100
312200020211102212100
42003010210123210
514000421404332
61002112252100
7105331205613
oct20304443344
95606742770
102199013092
11a293160a1
12514541030
132907773a3
1416c0a187a
15cd0c467c
hex831246e4

2199013092 has 18 divisors (see below), whose sum is σ = 5558616518. Its totient is φ = 733004352.

The previous prime is 2199013067. The next prime is 2199013099. The reversal of 2199013092 is 2903109912.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1586747556 + 612265536 = 39834^2 + 24744^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 61083697 = 2199013092 / (2 + 1 + 9 + 9 + 0 + 1 + 3 + 0 + 9 + 2).

It is not an unprimeable number, because it can be changed into a prime (2199013099) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30541813 + ... + 30541884.

Almost surely, 22199013092 is an apocalyptic number.

It is an amenable number.

2199013092 is an abundant number, since it is smaller than the sum of its proper divisors (3359603426).

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

2199013092 is a wasteful number, since it uses less digits than its factorization.

2199013092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61083707 (or 61083702 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 36.

The square root of 2199013092 is about 46893.6359434838. The cubic root of 2199013092 is about 1300.3969383537.

The spelling of 2199013092 in words is "two billion, one hundred ninety-nine million, thirteen thousand, ninety-two".

Divisors: 1 2 3 4 6 9 12 18 36 61083697 122167394 183251091 244334788 366502182 549753273 733004364 1099506546 2199013092