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140756042 = 2716361681
BaseRepresentation
bin10000110001111…
…00010001001010
3100210212010222202
420120330101022
5242013143132
621544520202
73326256320
oct1030742112
9323763882
10140756042
11724a9109
123b180062
13232134cb
141499dd10
15c555762
hex863c44a

140756042 has 16 divisors (see below), whose sum is σ = 242780352. Its totient is φ = 59952960.

The previous prime is 140756041. The next prime is 140756051. The reversal of 140756042 is 240657041.

It is a junction number, because it is equal to n+sod(n) for n = 140755996 and 140756014.

It is not an unprimeable number, because it can be changed into a prime (140756041) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 28559 + ... + 33122.

It is an arithmetic number, because the mean of its divisors is an integer number (15173772).

Almost surely, 2140756042 is an apocalyptic number.

140756042 is a deficient number, since it is larger than the sum of its proper divisors (102024310).

140756042 is a wasteful number, since it uses less digits than its factorization.

140756042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61853.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 140756042 is about 11864.0651549121. The cubic root of 140756042 is about 520.1824335232.

Subtracting 140756042 from its reverse (240657041), we obtain a palindrome (99900999).

The spelling of 140756042 in words is "one hundred forty million, seven hundred fifty-six thousand, forty-two".

Divisors: 1 2 7 14 163 326 1141 2282 61681 123362 431767 863534 10054003 20108006 70378021 140756042