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140507223 = 31918113619
BaseRepresentation
bin10000101111111…
…11100001010111
3100210101111200020
420113333201113
5241432212343
621535320223
73324202023
oct1027774127
9323344606
10140507223
117234917a
123b080073
132315718c
1414937383
15c506b83
hex85ff857

140507223 has 16 divisors (see below), whose sum is σ = 198307200. Its totient is φ = 88244640.

The previous prime is 140507209. The next prime is 140507231. The reversal of 140507223 is 322705041.

It is not a de Polignac number, because 140507223 - 217 = 140376151 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 140507193 and 140507202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140507203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3508 + ... + 17126.

It is an arithmetic number, because the mean of its divisors is an integer number (12394200).

Almost surely, 2140507223 is an apocalyptic number.

140507223 is a deficient number, since it is larger than the sum of its proper divisors (57799977).

140507223 is a wasteful number, since it uses less digits than its factorization.

140507223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13822.

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 140507223 is about 11853.5742710796. The cubic root of 140507223 is about 519.8757383062.

The spelling of 140507223 in words is "one hundred forty million, five hundred seven thousand, two hundred twenty-three".

Divisors: 1 3 19 57 181 543 3439 10317 13619 40857 258761 776283 2465039 7395117 46835741 140507223