Search a number
3320120021 = 191031169489
BaseRepresentation
bin1100010111100101…
…0000001011010101
322120101101120110012
43011321100023111
523244422320041
61305241410005
7145163361131
oct30571201325
98511346405
103320120021
111454137349
12787a99905
1340bb0827a
14236d363c1
151467293eb
hexc5e502d5

3320120021 has 8 divisors (see below), whose sum is σ = 3498273600. Its totient is φ = 3142307520.

The previous prime is 3320119993. The next prime is 3320120029. The reversal of 3320120021 is 1200210233.

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 a de Polignac number, because none of the positive numbers 2k-3320120021 is a prime.

It is a super-2 number, since 2×33201200212 = 22046393907690080882, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3320119978 and 3320120005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3320120029) 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, 65156 + ... + 104333.

It is an arithmetic number, because the mean of its divisors is an integer number (437284200).

Almost surely, 23320120021 is an apocalyptic number.

It is an amenable number.

3320120021 is a deficient number, since it is larger than the sum of its proper divisors (178153579).

3320120021 is a wasteful number, since it uses less digits than its factorization.

3320120021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170539.

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

The square root of 3320120021 is about 57620.4826515710. The cubic root of 3320120021 is about 1491.8251616876.

Adding to 3320120021 its reverse (1200210233), we get a palindrome (4520330254).

The spelling of 3320120021 in words is "three billion, three hundred twenty million, one hundred twenty thousand, twenty-one".