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140524831 is a prime number
BaseRepresentation
bin10000110000000…
…11110100011111
3100210102101211101
420120003310133
5241433243311
621535533531
73324304246
oct1030036437
9323371741
10140524831
1172360427
123b08a2a7
13231621b5
141493d95d
15c50bec1
hex8603d1f

140524831 has 2 divisors, whose sum is σ = 140524832. Its totient is φ = 140524830.

The previous prime is 140524799. The next prime is 140524921. The reversal of 140524831 is 138425041.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 140524831 - 25 = 140524799 is a prime.

It is a super-2 number, since 2×1405248312 = 39494456255157122, which contains 22 as substring.

It is equal to p7940107 and since 140524831 and 7940107 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 140524831.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140525831) 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 as a sum of consecutive naturals, namely, 70262415 + 70262416.

It is an arithmetic number, because the mean of its divisors is an integer number (70262416).

Almost surely, 2140524831 is an apocalyptic number.

140524831 is a deficient number, since it is larger than the sum of its proper divisors (1).

140524831 is an equidigital number, since it uses as much as digits as its factorization.

140524831 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 140524831 is about 11854.3169773716. The cubic root of 140524831 is about 519.8974538912.

Adding to 140524831 its reverse (138425041), we get a palindrome (278949872).

The spelling of 140524831 in words is "one hundred forty million, five hundred twenty-four thousand, eight hundred thirty-one".