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140143433 = 863162391
BaseRepresentation
bin10000101101001…
…10101101001001
3100202201000122112
420112212231021
5241334042213
621523432105
73321125303
oct1026465511
9322630575
10140143433
117211a921
123ab25635
132305a711
1414880973
15c483ea8
hex85a6b49

140143433 has 4 divisors (see below), whose sum is σ = 140306688. Its totient is φ = 139980180.

The previous prime is 140143403. The next prime is 140143463. The reversal of 140143433 is 334341041.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (140143403) and next prime (140143463).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-140143433 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 140143399 and 140143408.

It is not an unprimeable number, because it can be changed into a prime (140143403) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 80333 + ... + 82058.

It is an arithmetic number, because the mean of its divisors is an integer number (35076672).

Almost surely, 2140143433 is an apocalyptic number.

It is an amenable number.

140143433 is a deficient number, since it is larger than the sum of its proper divisors (163255).

140143433 is an equidigital number, since it uses as much as digits as its factorization.

140143433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163254.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 140143433 is about 11838.2191650603. The cubic root of 140143433 is about 519.4266770435.

Adding to 140143433 its reverse (334341041), we get a palindrome (474484474).

The spelling of 140143433 in words is "one hundred forty million, one hundred forty-three thousand, four hundred thirty-three".

Divisors: 1 863 162391 140143433