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140144206 = 2618912907
BaseRepresentation
bin10000101101001…
…10111001001110
3100202201001201011
420112212321032
5241334103311
621523435434
73321130456
oct1026467116
9322631634
10140144206
1172120464
123ab25b7a
132305ab87
1414880d66
15c484321
hex85a6e4e

140144206 has 16 divisors (see below), whose sum is σ = 216079920. Its totient is φ = 68143680.

The previous prime is 140144203. The next prime is 140144219. The reversal of 140144206 is 602441041.

140144206 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140144201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4405 + ... + 17311.

It is an arithmetic number, because the mean of its divisors is an integer number (13504995).

Almost surely, 2140144206 is an apocalyptic number.

140144206 is a deficient number, since it is larger than the sum of its proper divisors (75935714).

140144206 is a wasteful number, since it uses less digits than its factorization.

140144206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13059.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 140144206 is about 11838.2518135069. The cubic root of 140144206 is about 519.4276320557.

Adding to 140144206 its reverse (602441041), we get a palindrome (742585247).

The spelling of 140144206 in words is "one hundred forty million, one hundred forty-four thousand, two hundred six".

Divisors: 1 2 61 89 122 178 5429 10858 12907 25814 787327 1148723 1574654 2297446 70072103 140144206