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3442312021 = 13126277191
BaseRepresentation
bin1100110100101101…
…1000001101010101
322212220022120100211
43031023120031111
524022212441041
61325324405421
7151206112051
oct31513301525
98786276324
103442312021
111507105a75
128009a6871
1342b21bb25
14249262c61
15152314481
hexcd2d8355

3442312021 has 4 divisors (see below), whose sum is σ = 3468589344. Its totient is φ = 3416034700.

The previous prime is 3442312009. The next prime is 3442312039. The reversal of 3442312021 is 1202132443.

3442312021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3442312021 - 229 = 2905441109 is a prime.

It is a super-2 number, since 2×34423120212 = 23699024099842208882, 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 = 3442311983 and 3442312001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3442312091) 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, 13138465 + ... + 13138726.

It is an arithmetic number, because the mean of its divisors is an integer number (867147336).

Almost surely, 23442312021 is an apocalyptic number.

It is an amenable number.

3442312021 is a deficient number, since it is larger than the sum of its proper divisors (26277323).

3442312021 is a wasteful number, since it uses less digits than its factorization.

3442312021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26277322.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 3442312021 is about 58671.2196992699. The cubic root of 3442312021 is about 1509.9065803351.

Adding to 3442312021 its reverse (1202132443), we get a palindrome (4644444464).

The spelling of 3442312021 in words is "three billion, four hundred forty-two million, three hundred twelve thousand, twenty-one".

Divisors: 1 131 26277191 3442312021