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4444888887 = 3243104910949
BaseRepresentation
bin1000010001110111…
…11001111100110111
3102110202211202021100
410020323321330313
533100342421022
62013021221143
7215101634505
oct41073717467
912422752240
104444888887
11198102989a
12a407017b3
1355ab4bb8a
14302481675
151b03541ac
hex108ef9f37

4444888887 has 24 divisors (see below), whose sum is σ = 6576570000. Its totient is φ = 2891323008.

The previous prime is 4444888879. The next prime is 4444888913. The reversal of 4444888887 is 7888884444.

4444888887 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 4444888887 - 23 = 4444888879 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4444888837) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 400489 + ... + 411437.

It is an arithmetic number, because the mean of its divisors is an integer number (274023750).

Almost surely, 24444888887 is an apocalyptic number.

4444888887 is a deficient number, since it is larger than the sum of its proper divisors (2131681113).

4444888887 is a wasteful number, since it uses less digits than its factorization.

4444888887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12047 (or 12044 counting only the distinct ones).

The product of its digits is 58720256, while the sum is 63.

The square root of 4444888887 is about 66669.9999025049. Note that the first 4 decimals coincide. The cubic root of 4444888887 is about 1644.1961855401.

The spelling of 4444888887 in words is "four billion, four hundred forty-four million, eight hundred eighty-eight thousand, eight hundred eighty-seven".

Divisors: 1 3 9 43 129 387 1049 3147 9441 10949 32847 45107 98541 135321 405963 470807 1412421 4237263 11485501 34456503 103369509 493876543 1481629629 4444888887