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140030053 = 1063131731
BaseRepresentation
bin10000101100010…
…11000001100101
3100202111021010021
420112023001211
5241321430203
621521155141
73320143612
oct1026130145
9322437107
10140030053
1172052719
123aa8bab1
132301ac27
1414851509
15c4605bd
hex858b065

140030053 has 4 divisors (see below), whose sum is σ = 140162848. Its totient is φ = 139897260.

The previous prime is 140030041. The next prime is 140030063. The reversal of 140030053 is 350030041.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 350030041 = 3071140163.

It is a cyclic number.

It is not a de Polignac number, because 140030053 - 29 = 140029541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140030063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64803 + ... + 66928.

It is an arithmetic number, because the mean of its divisors is an integer number (35040712).

Almost surely, 2140030053 is an apocalyptic number.

It is an amenable number.

140030053 is a deficient number, since it is larger than the sum of its proper divisors (132795).

140030053 is a wasteful number, since it uses less digits than its factorization.

140030053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132794.

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 140030053 is about 11833.4294690931. The cubic root of 140030053 is about 519.2865622947.

Adding to 140030053 its reverse (350030041), we get a palindrome (490060094).

The spelling of 140030053 in words is "one hundred forty million, thirty thousand, fifty-three".

Divisors: 1 1063 131731 140030053