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140231044 = 2255276343
BaseRepresentation
bin10000101101111…
…00000110000100
3100202212110211101
420112330012010
5241344343134
621525345444
73321641602
oct1026740604
9322773741
10140231044
117217a728
123ab68284
132308b565
14148a4872
15c49ee14
hex85bc184

140231044 has 12 divisors (see below), whose sum is σ = 245487424. Its totient is φ = 70091784.

The previous prime is 140230969. The next prime is 140231053. The reversal of 140231044 is 440132041.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18937 + ... + 25279.

Almost surely, 2140231044 is an apocalyptic number.

It is an amenable number.

140231044 is a deficient number, since it is larger than the sum of its proper divisors (105256380).

140231044 is a wasteful number, since it uses less digits than its factorization.

140231044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11874 (or 11872 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 140231044 is about 11841.9189323352. The cubic root of 140231044 is about 519.5348947694.

Adding to 140231044 its reverse (440132041), we get a palindrome (580363085).

The spelling of 140231044 in words is "one hundred forty million, two hundred thirty-one thousand, forty-four".

Divisors: 1 2 4 5527 6343 11054 12686 22108 25372 35057761 70115522 140231044