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140241863 = 831689661
BaseRepresentation
bin10000101101111…
…10101111000111
3100202220000200002
420112332233013
5241400214423
621525511515
73322015256
oct1026765707
9322800602
10140241863
1172187873
123ab7259b
1323093468
14148a879d
15c4a3228
hex85bebc7

140241863 has 4 divisors (see below), whose sum is σ = 141931608. Its totient is φ = 138552120.

The previous prime is 140241851. The next prime is 140241889. The reversal of 140241863 is 368142041.

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 140241863 - 214 = 140225479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140241163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 844748 + ... + 844913.

It is an arithmetic number, because the mean of its divisors is an integer number (35482902).

Almost surely, 2140241863 is an apocalyptic number.

140241863 is a deficient number, since it is larger than the sum of its proper divisors (1689745).

140241863 is an equidigital number, since it uses as much as digits as its factorization.

140241863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1689744.

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 140241863 is about 11842.3757329347. The cubic root of 140241863 is about 519.5482553476.

The spelling of 140241863 in words is "one hundred forty million, two hundred forty-one thousand, eight hundred sixty-three".

Divisors: 1 83 1689661 140241863