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142260053 = 1332293389
BaseRepresentation
bin10000111101010…
…11011101010101
3100220200120002212
420132223131111
5242404310203
622041043205
73345122225
oct1036533525
9326616085
10142260053
11733360a1
123b786505
132361bc60
1414c72085
15c7511d8
hex87ab755

142260053 has 8 divisors (see below), whose sum is σ = 153295800. Its totient is φ = 131237568.

The previous prime is 142260007. The next prime is 142260077. The reversal of 142260053 is 350062241.

It can be written as a sum of positive squares in 4 ways, for example, as 21743569 + 120516484 = 4663^2 + 10978^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-142260053 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142260253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40283 + ... + 43671.

It is an arithmetic number, because the mean of its divisors is an integer number (19161975).

Almost surely, 2142260053 is an apocalyptic number.

142260053 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

142260053 is a deficient number, since it is larger than the sum of its proper divisors (11035747).

142260053 is a wasteful number, since it uses less digits than its factorization.

142260053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6631.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 142260053 is about 11927.2818781146. The cubic root of 142260053 is about 522.0286300802.

The spelling of 142260053 in words is "one hundred forty-two million, two hundred sixty thousand, fifty-three".

Divisors: 1 13 3229 3389 41977 44057 10943081 142260053