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140749159 = 83220431
BaseRepresentation
bin10000110001110…
…10100101100111
3100210211210112211
420120322211213
5242012433114
621544424251
73326230255
oct1030724547
9323753484
10140749159
11724a3a21
123b178087
1323210335
141499b5d5
15c5536c4
hex863a967

140749159 has 6 divisors (see below), whose sum is σ = 142472336. Its totient is φ = 139046580.

The previous prime is 140749153. The next prime is 140749163. The reversal of 140749159 is 951947041.

140749159 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 140749159 - 25 = 140749127 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 (140749153) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3327 + ... + 17104.

Almost surely, 2140749159 is an apocalyptic number.

140749159 is a deficient number, since it is larger than the sum of its proper divisors (1723177).

140749159 is an frugal number, since it uses more digits than its factorization.

140749159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20597 (or 20514 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 40.

The square root of 140749159 is about 11863.7750737276. The cubic root of 140749159 is about 520.1739543749.

The spelling of 140749159 in words is "one hundred forty million, seven hundred forty-nine thousand, one hundred fifty-nine".

Divisors: 1 83 6889 20431 1695773 140749159