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142127774 = 271063887
BaseRepresentation
bin10000111100010…
…11001010011110
3100220102211122122
420132023022132
5242341042044
622034142542
73344031455
oct1036131236
9326384578
10142127774
1173255778
123b721a52
13235a3999
1414c39b9c
15c726dee
hex878b29e

142127774 has 4 divisors (see below), whose sum is σ = 213191664. Its totient is φ = 71063886.

The previous prime is 142127761. The next prime is 142127813. The reversal of 142127774 is 477721241.

142127774 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 477721241 = 755963199.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35531942 + ... + 35531945.

It is an arithmetic number, because the mean of its divisors is an integer number (53297916).

Almost surely, 2142127774 is an apocalyptic number.

142127774 is a deficient number, since it is larger than the sum of its proper divisors (71063890).

142127774 is an equidigital number, since it uses as much as digits as its factorization.

142127774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71063889.

The product of its digits is 21952, while the sum is 35.

The square root of 142127774 is about 11921.7353602569. The cubic root of 142127774 is about 521.8667789781.

The spelling of 142127774 in words is "one hundred forty-two million, one hundred twenty-seven thousand, seven hundred seventy-four".

Divisors: 1 2 71063887 142127774