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140223165 = 3512797309
BaseRepresentation
bin10000101101110…
…10001010111101
3100202212002000120
420112322022331
5241344120130
621525245153
73321606615
oct1026721275
9322762016
10140223165
1172174815
123ab637b9
1323087ab4
14148a1a45
15c49c910
hex85ba2bd

140223165 has 16 divisors (see below), whose sum is σ = 224563200. Its totient is φ = 74716992.

The previous prime is 140223151. The next prime is 140223227. The reversal of 140223165 is 561322041.

It is not a de Polignac number, because 140223165 - 26 = 140223101 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15531 + ... + 22839.

It is an arithmetic number, because the mean of its divisors is an integer number (14035200).

Almost surely, 2140223165 is an apocalyptic number.

140223165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

140223165 is a deficient number, since it is larger than the sum of its proper divisors (84340035).

140223165 is a wasteful number, since it uses less digits than its factorization.

140223165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8596.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 140223165 is about 11841.5862535388. The cubic root of 140223165 is about 519.5251644178.

The spelling of 140223165 in words is "one hundred forty million, two hundred twenty-three thousand, one hundred sixty-five".

Divisors: 1 3 5 15 1279 3837 6395 7309 19185 21927 36545 109635 9348211 28044633 46741055 140223165