Search a number
-
+
2190370404 = 223182530867
BaseRepresentation
bin1000001010001110…
…0110011001100100
312122122120100022210
42002203212121210
513441213323104
61001203123420
7105164561355
oct20243463144
95578510283
102190370404
11a24452782
12511673570
1328ba3c581
1416ac91d2c
15cc468989
hex828e6664

2190370404 has 12 divisors (see below), whose sum is σ = 5110864304. Its totient is φ = 730123464.

The previous prime is 2190370387. The next prime is 2190370439. The reversal of 2190370404 is 4040730912.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 91265422 + ... + 91265445.

Almost surely, 22190370404 is an apocalyptic number.

It is an amenable number.

2190370404 is an abundant number, since it is smaller than the sum of its proper divisors (2920493900).

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

2190370404 is a wasteful number, since it uses less digits than its factorization.

2190370404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182530874 (or 182530872 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 2190370404 is about 46801.3931843914. The cubic root of 2190370404 is about 1298.6910698975.

The spelling of 2190370404 in words is "two billion, one hundred ninety million, three hundred seventy thousand, four hundred four".

Divisors: 1 2 3 4 6 12 182530867 365061734 547592601 730123468 1095185202 2190370404