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140501513 = 661921227
BaseRepresentation
bin10000101111111…
…10001000001001
3100210101012211202
420113332020021
5241432022023
621535233545
73324146255
oct1027761011
9323335752
10140501513
1172344959
123b0788b5
13231546b9
1414935265
15c505128
hex85fe209

140501513 has 4 divisors (see below), whose sum is σ = 140529360. Its totient is φ = 140473668.

The previous prime is 140501507. The next prime is 140501521. The reversal of 140501513 is 315105041.

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 a cyclic number.

It is not a de Polignac number, because 140501513 - 222 = 136307209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140501573) 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, 3995 + ... + 17232.

It is an arithmetic number, because the mean of its divisors is an integer number (35132340).

Almost surely, 2140501513 is an apocalyptic number.

It is an amenable number.

140501513 is a deficient number, since it is larger than the sum of its proper divisors (27847).

140501513 is an equidigital number, since it uses as much as digits as its factorization.

140501513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27846.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 140501513 is about 11853.3334130109. Note that the first 3 decimals coincide. The cubic root of 140501513 is about 519.8686958909.

Adding to 140501513 its reverse (315105041), we get a palindrome (455606554).

The spelling of 140501513 in words is "one hundred forty million, five hundred one thousand, five hundred thirteen".

Divisors: 1 6619 21227 140501513