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142151253 = 347383751
BaseRepresentation
bin10000111100100…
…00111001010101
3100220111000212020
420132100321111
5242342320003
622034443353
73344160066
oct1036207125
9326430766
10142151253
1173271382
123b733559
13235b158a
1414c4456d
15c72dd53
hex8790e55

142151253 has 4 divisors (see below), whose sum is σ = 189535008. Its totient is φ = 94767500.

The previous prime is 142151231. The next prime is 142151309. The reversal of 142151253 is 352151241.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 142151253 - 28 = 142150997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142111253) 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 3 ways as a sum of consecutive naturals, for example, 23691873 + ... + 23691878.

It is an arithmetic number, because the mean of its divisors is an integer number (47383752).

Almost surely, 2142151253 is an apocalyptic number.

It is an amenable number.

142151253 is a deficient number, since it is larger than the sum of its proper divisors (47383755).

142151253 is an equidigital number, since it uses as much as digits as its factorization.

142151253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47383754.

The product of its digits is 1200, while the sum is 24.

The square root of 142151253 is about 11922.7200336165. The cubic root of 142151253 is about 521.8955142378.

The spelling of 142151253 in words is "one hundred forty-two million, one hundred fifty-one thousand, two hundred fifty-three".

Divisors: 1 3 47383751 142151253