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3214444021 = 4027798223
BaseRepresentation
bin1011111110011000…
…1000010111110101
322022000112200020021
42333212020113311
523040344202041
61250544405141
7142441215625
oct27746102765
98260480207
103214444021
1113aa519408
127586167b1
133c2c580a9
14226ca8885
1513c302cd1
hexbf9885f5

3214444021 has 4 divisors (see below), whose sum is σ = 3215246272. Its totient is φ = 3213641772.

The previous prime is 3214444019. The next prime is 3214444043. The reversal of 3214444021 is 1204444123.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1204444123 = 3225737339.

It is a cyclic number.

It is not a de Polignac number, because 3214444021 - 21 = 3214444019 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3214444721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 395085 + ... + 403138.

It is an arithmetic number, because the mean of its divisors is an integer number (803811568).

Almost surely, 23214444021 is an apocalyptic number.

It is an amenable number.

3214444021 is a deficient number, since it is larger than the sum of its proper divisors (802251).

3214444021 is an equidigital number, since it uses as much as digits as its factorization.

3214444021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 802250.

The product of its (nonzero) digits is 3072, while the sum is 25.

The square root of 3214444021 is about 56696.0670681838. The cubic root of 3214444021 is about 1475.8264480457.

Adding to 3214444021 its reverse (1204444123), we get a palindrome (4418888144).

The spelling of 3214444021 in words is "three billion, two hundred fourteen million, four hundred forty-four thousand, twenty-one".

Divisors: 1 4027 798223 3214444021