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3320030021 = 711223239809
BaseRepresentation
bin1100010111100011…
…1010001101000101
322120101012222222212
43011320322031011
523244411430041
61305235433205
7145162534550
oct30570721505
98511188885
103320030021
111454085770
12787a55805
1340baa6309
14236d11697
1514670c8eb
hexc5e3a345

3320030021 has 32 divisors (see below), whose sum is σ = 4180377600. Its totient is φ = 2561489280.

The previous prime is 3320029987. The next prime is 3320030023. The reversal of 3320030021 is 1200300233.

3320030021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3320030021 - 226 = 3252921157 is a prime.

It is a super-2 number, since 2×33200300212 = 22045198680682520882, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3320029978 and 3320030005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3320030023) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4103465 + ... + 4104273.

It is an arithmetic number, because the mean of its divisors is an integer number (130636800).

Almost surely, 23320030021 is an apocalyptic number.

It is an amenable number.

3320030021 is a deficient number, since it is larger than the sum of its proper divisors (860347579).

3320030021 is a wasteful number, since it uses less digits than its factorization.

3320030021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1289.

The product of its (nonzero) digits is 108, while the sum is 14.

The square root of 3320030021 is about 57619.7016739934. The cubic root of 3320030021 is about 1491.8116817053.

Adding to 3320030021 its reverse (1200300233), we get a palindrome (4520330254).

The spelling of 3320030021 in words is "three billion, three hundred twenty million, thirty thousand, twenty-one".

Divisors: 1 7 11 77 223 239 809 1561 1673 2453 2629 5663 8899 17171 18403 53297 62293 180407 193351 373079 586267 1262849 1353457 1984477 2126861 4103869 13891339 14888027 43117273 301820911 474290003 3320030021