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140116501 = 720016643
BaseRepresentation
bin10000101101000…
…00001000010101
3100202122122201001
420112200020111
5241332212001
621523103301
73320653630
oct1026401025
9322578631
10140116501
1172101668
123ab11b31
132304b395
1414874c17
15c47b001
hex85a0215

140116501 has 4 divisors (see below), whose sum is σ = 160133152. Its totient is φ = 120099852.

The previous prime is 140116481. The next prime is 140116511. The reversal of 140116501 is 105611041.

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, and also an emirpimes, since its reverse is a distinct semiprime: 105611041 = 127831583.

It is a cyclic number.

It is not a de Polignac number, because 140116501 - 219 = 139592213 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 (140116511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10008315 + ... + 10008328.

It is an arithmetic number, because the mean of its divisors is an integer number (40033288).

Almost surely, 2140116501 is an apocalyptic number.

It is an amenable number.

140116501 is a deficient number, since it is larger than the sum of its proper divisors (20016651).

140116501 is an equidigital number, since it uses as much as digits as its factorization.

140116501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20016650.

The product of its (nonzero) digits is 120, while the sum is 19.

The square root of 140116501 is about 11837.0816082344. The cubic root of 140116501 is about 519.3934013840.

Adding to 140116501 its reverse (105611041), we get a palindrome (245727542).

The spelling of 140116501 in words is "one hundred forty million, one hundred sixteen thousand, five hundred one".

Divisors: 1 7 20016643 140116501