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142714428 = 22311892869
BaseRepresentation
bin10001000000110…
…10011000111100
3100221112122101120
420200122120330
5243013330203
622054510540
73352024023
oct1040323074
9327478346
10142714428
117361650a
123b965450
132374aa0c
1414d4d8ba
15c7e0b53
hex881a63c

142714428 has 12 divisors (see below), whose sum is σ = 333000360. Its totient is φ = 47571472.

The previous prime is 142714427. The next prime is 142714457. The reversal of 142714428 is 824417241.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142714427) 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, 5946423 + ... + 5946446.

It is an arithmetic number, because the mean of its divisors is an integer number (27750030).

Almost surely, 2142714428 is an apocalyptic number.

It is an amenable number.

142714428 is an abundant number, since it is smaller than the sum of its proper divisors (190285932).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142714428 is a wasteful number, since it uses less digits than its factorization.

142714428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11892876 (or 11892874 counting only the distinct ones).

The product of its digits is 14336, while the sum is 33.

The square root of 142714428 is about 11946.3144107294. The cubic root of 142714428 is about 522.5838214767.

The spelling of 142714428 in words is "one hundred forty-two million, seven hundred fourteen thousand, four hundred twenty-eight".

Divisors: 1 2 3 4 6 12 11892869 23785738 35678607 47571476 71357214 142714428