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142793165 = 528558633
BaseRepresentation
bin10001000001011…
…01100111001101
3100221200122101202
420200231213031
5243023340130
622100315245
73352502414
oct1040554715
9327618352
10142793165
117366a689
123b9a2b25
13237777c8
1414d7047b
15c809145
hex882d9cd

142793165 has 4 divisors (see below), whose sum is σ = 171351804. Its totient is φ = 114234528.

The previous prime is 142793159. The next prime is 142793197. The reversal of 142793165 is 561397241.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 99720196 + 43072969 = 9986^2 + 6563^2 .

It is a cyclic number.

It is not a de Polignac number, because 142793165 - 210 = 142792141 is a prime.

It is a super-3 number, since 3×1427931653 (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 14279312 + ... + 14279321.

It is an arithmetic number, because the mean of its divisors is an integer number (42837951).

Almost surely, 2142793165 is an apocalyptic number.

It is an amenable number.

142793165 is a deficient number, since it is larger than the sum of its proper divisors (28558639).

142793165 is an equidigital number, since it uses as much as digits as its factorization.

142793165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28558638.

The product of its digits is 45360, while the sum is 38.

The square root of 142793165 is about 11949.6094078426. The cubic root of 142793165 is about 522.6799087428.

The spelling of 142793165 in words is "one hundred forty-two million, seven hundred ninety-three thousand, one hundred sixty-five".

Divisors: 1 5 28558633 142793165