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140111042 = 2174787679
BaseRepresentation
bin10000101100111…
…10110011000010
3100202122101012212
420112132303002
5241332023132
621523022122
73320632001
oct1026366302
9322571185
10140111042
11720a8555
123ab0a942
1323048a56
1414872c38
15c4795b2
hex859ecc2

140111042 has 16 divisors (see below), whose sum is σ = 227266560. Its totient is φ = 64531008.

The previous prime is 140111033. The next prime is 140111077. The reversal of 140111042 is 240111041.

It is a super-2 number, since 2×1401110422 = 39262208180651528, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42242 + ... + 45437.

It is an arithmetic number, because the mean of its divisors is an integer number (14204160).

Almost surely, 2140111042 is an apocalyptic number.

140111042 is a deficient number, since it is larger than the sum of its proper divisors (87155518).

140111042 is a wasteful number, since it uses less digits than its factorization.

140111042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87745.

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 140111042 is about 11836.8510170569. The cubic root of 140111042 is about 519.3866560319.

Adding to 140111042 its reverse (240111041), we get a palindrome (380222083).

Subtracting 140111042 from its reverse (240111041), we obtain a palindrome (99999999).

The spelling of 140111042 in words is "one hundred forty million, one hundred eleven thousand, forty-two".

Divisors: 1 2 17 34 47 94 799 1598 87679 175358 1490543 2981086 4120913 8241826 70055521 140111042