Search a number
-
+
3130002221 = 191011631059
BaseRepresentation
bin1011101010010000…
…0000101100101101
322002010122120212012
42322210000230231
522402240032341
61234330451005
7140364402623
oct27244005455
98063576765
103130002221
111366893aa5
12734293a65
133ab601028
142199a7513
15134bc30eb
hexba900b2d

3130002221 has 8 divisors (see below), whose sum is σ = 3327362400. Its totient is φ = 2935904400.

The previous prime is 3130002193. The next prime is 3130002241. The reversal of 3130002221 is 1222000313.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3130002221 - 26 = 3130002157 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3130002196 and 3130002205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3130002241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 813611 + ... + 817448.

It is an arithmetic number, because the mean of its divisors is an integer number (415920300).

Almost surely, 23130002221 is an apocalyptic number.

It is an amenable number.

3130002221 is a deficient number, since it is larger than the sum of its proper divisors (197360179).

3130002221 is a wasteful number, since it uses less digits than its factorization.

3130002221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1631179.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 3130002221 is about 55946.4227721487. The cubic root of 3130002221 is about 1462.7885376695.

Adding to 3130002221 its reverse (1222000313), we get a palindrome (4352002534).

The spelling of 3130002221 in words is "three billion, one hundred thirty million, two thousand, two hundred twenty-one".

Divisors: 1 19 101 1919 1631059 30990121 164736959 3130002221