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4442942887 = 6436909709
BaseRepresentation
bin1000010001101000…
…11110110110100111
3102110122011212212021
410020310132312213
533044343133022
62012511404011
7215046251155
oct41064366647
912418155767
104442942887
11197aa1a829
12a3bb23607
1355a61a1b6
143020d63d5
151b00bc7c7
hex108d1eda7

4442942887 has 4 divisors (see below), whose sum is σ = 4449853240. Its totient is φ = 4436032536.

The previous prime is 4442942873. The next prime is 4442942891. The reversal of 4442942887 is 7882492444.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4442942887 - 211 = 4442940839 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 (4442942837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3454212 + ... + 3455497.

It is an arithmetic number, because the mean of its divisors is an integer number (1112463310).

Almost surely, 24442942887 is an apocalyptic number.

4442942887 is a deficient number, since it is larger than the sum of its proper divisors (6910353).

4442942887 is an equidigital number, since it uses as much as digits as its factorization.

4442942887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6910352.

The product of its digits is 4128768, while the sum is 52.

The square root of 4442942887 is about 66655.4040344817. The cubic root of 4442942887 is about 1643.9562040762.

The spelling of 4442942887 in words is "four billion, four hundred forty-two million, nine hundred forty-two thousand, eight hundred eighty-seven".

Divisors: 1 643 6909709 4442942887