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140046423 = 31129612399
BaseRepresentation
bin10000101100011…
…11000001010111
3100202112002120120
420112033001113
5241322441143
621521403023
73320242416
oct1026170127
9322462516
10140046423
1172063a50
123aa99473
132302550a
141485747d
15c465383
hex858f057

140046423 has 32 divisors (see below), whose sum is σ = 214272000. Its totient is φ = 80572800.

The previous prime is 140046421. The next prime is 140046451. The reversal of 140046423 is 324640041.

It is not a de Polignac number, because 140046423 - 21 = 140046421 is a prime.

It is a super-2 number, since 2×1400464232 = 39226001190189858, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 140046393 and 140046402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140046421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 57178 + ... + 59576.

It is an arithmetic number, because the mean of its divisors is an integer number (6696000).

Almost surely, 2140046423 is an apocalyptic number.

140046423 is a deficient number, since it is larger than the sum of its proper divisors (74225577).

140046423 is a wasteful number, since it uses less digits than its factorization.

140046423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2503.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 140046423 is about 11834.1211334007. The cubic root of 140046423 is about 519.3067969744.

Adding to 140046423 its reverse (324640041), we get a palindrome (464686464).

The spelling of 140046423 in words is "one hundred forty million, forty-six thousand, four hundred twenty-three".

Divisors: 1 3 11 29 33 61 87 183 319 671 957 1769 2013 2399 5307 7197 19459 26389 58377 69571 79167 146339 208713 439017 765281 1609729 2295843 4243831 4829187 12731493 46682141 140046423