Search a number
-
+
2190310212 = 223182525851
BaseRepresentation
bin1000001010001101…
…0111101101000100
312122122110021202110
42002203113231010
513441204411322
61001201541020
7105164221026
oct20243275504
95578407673
102190310212
11a24411532
12511644770
1328ba1b05c
1416ac78016
15cc455c0c
hex828d7b44

2190310212 has 12 divisors (see below), whose sum is σ = 5110723856. Its totient is φ = 730103400.

The previous prime is 2190310207. The next prime is 2190310219. The reversal of 2190310212 is 2120130912.

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

It is not an unprimeable number, because it can be changed into a prime (2190310219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91262914 + ... + 91262937.

Almost surely, 22190310212 is an apocalyptic number.

It is an amenable number.

2190310212 is an abundant number, since it is smaller than the sum of its proper divisors (2920413644).

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

2190310212 is a wasteful number, since it uses less digits than its factorization.

2190310212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182525858 (or 182525856 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 2190310212 is about 46800.7501221936. The cubic root of 2190310212 is about 1298.6791736555.

The spelling of 2190310212 in words is "two billion, one hundred ninety million, three hundred ten thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 182525851 365051702 547577553 730103404 1095155106 2190310212