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44087143 = 401109943
BaseRepresentation
bin1010100000101…
…1011101100111
310001221212012011
42220023131213
542241242033
64212535051
71043506642
oct250133547
9101855164
1044087143
1122982361
1212921487
139197c89
145bd8a59
153d0cccd
hex2a0b767

44087143 has 4 divisors (see below), whose sum is σ = 44197488. Its totient is φ = 43976800.

The previous prime is 44087123. The next prime is 44087167. The reversal of 44087143 is 34178044.

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 44087143 - 25 = 44087111 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44087123) 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, 54571 + ... + 55372.

It is an arithmetic number, because the mean of its divisors is an integer number (11049372).

Almost surely, 244087143 is an apocalyptic number.

44087143 is a deficient number, since it is larger than the sum of its proper divisors (110345).

44087143 is a wasteful number, since it uses less digits than its factorization.

44087143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110344.

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 44087143 is about 6639.8149823621. The cubic root of 44087143 is about 353.2677443423.

Subtracting from 44087143 its reverse (34178044), we obtain a palindrome (9909099).

The spelling of 44087143 in words is "forty-four million, eighty-seven thousand, one hundred forty-three".

Divisors: 1 401 109943 44087143