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140800641 = 32397109193
BaseRepresentation
bin10000110010001…
…11001010000001
3100210221102011120
420121013022001
5242021110031
621545502453
73326533332
oct1031071201
9323842146
10140800641
1172529673
123b1a1a29
132322a8b7
14149b2289
15c563a96
hex8647281

140800641 has 32 divisors (see below), whose sum is σ = 200766720. Its totient is φ = 87588864.

The previous prime is 140800589. The next prime is 140800657. The reversal of 140800641 is 146008041.

It is not a de Polignac number, because 140800641 - 29 = 140800129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (140800661) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 729441 + ... + 729633.

It is an arithmetic number, because the mean of its divisors is an integer number (6273960).

Almost surely, 2140800641 is an apocalyptic number.

It is an amenable number.

140800641 is a deficient number, since it is larger than the sum of its proper divisors (59966079).

140800641 is a wasteful number, since it uses less digits than its factorization.

140800641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425.

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 140800641 is about 11865.9445894543. The cubic root of 140800641 is about 520.2373682082.

Adding to 140800641 its reverse (146008041), we get a palindrome (286808682).

The spelling of 140800641 in words is "one hundred forty million, eight hundred thousand, six hundred forty-one".

Divisors: 1 3 23 69 97 109 193 291 327 579 2231 2507 4439 6693 7521 10573 13317 18721 21037 31719 56163 63111 243179 430583 483851 729537 1291749 1451553 2040589 6121767 46933547 140800641