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44542143 = 35183301
BaseRepresentation
bin1010100111101…
…0100010111111
310002210222100000
42221322202333
542400322033
64230405343
71050413322
oct251724277
9102728300
1044542143
1123163198
1212b00853
1392c70c9
145cb67b9
153d9ca13
hex2a7a8bf

44542143 has 12 divisors (see below), whose sum is σ = 66721928. Its totient is φ = 29694600.

The previous prime is 44542129. The next prime is 44542151. The reversal of 44542143 is 34124544.

It is a happy number.

44542143 is a `hidden beast` number, since 445 + 4 + 214 + 3 = 666.

It is not a de Polignac number, because 44542143 - 26 = 44542079 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44542123) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 91408 + ... + 91893.

Almost surely, 244542143 is an apocalyptic number.

44542143 is a deficient number, since it is larger than the sum of its proper divisors (22179785).

44542143 is an equidigital number, since it uses as much as digits as its factorization.

44542143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183316 (or 183304 counting only the distinct ones).

The product of its digits is 7680, while the sum is 27.

The square root of 44542143 is about 6673.9900359530. The cubic root of 44542143 is about 354.4788836281.

Adding to 44542143 its reverse (34124544), we get a palindrome (78666687).

The spelling of 44542143 in words is "forty-four million, five hundred forty-two thousand, one hundred forty-three".

Divisors: 1 3 9 27 81 243 183301 549903 1649709 4949127 14847381 44542143