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142865214 = 23373971621
BaseRepresentation
bin10001000001111…
…11001100111110
3100221211022020020
420200333030332
5243033141324
622102033010
73353222442
oct1040771476
9327738206
10142865214
1173709828
123ba18766
13237a153b
1414d8c822
15c820679
hex883f33e

142865214 has 32 divisors (see below), whose sum is σ = 294373536. Its totient is φ = 46189440.

The previous prime is 142865209. The next prime is 142865231. The reversal of 142865214 is 412568241.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87324 + ... + 88944.

It is an arithmetic number, because the mean of its divisors is an integer number (9199173).

Almost surely, 2142865214 is an apocalyptic number.

142865214 is an abundant number, since it is smaller than the sum of its proper divisors (151508322).

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

142865214 is a wasteful number, since it uses less digits than its factorization.

142865214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2060.

The product of its digits is 15360, while the sum is 33.

The square root of 142865214 is about 11952.6237287049. The cubic root of 142865214 is about 522.7678033157.

The spelling of 142865214 in words is "one hundred forty-two million, eight hundred sixty-five thousand, two hundred fourteen".

Divisors: 1 2 3 6 37 74 111 222 397 794 1191 1621 2382 3242 4863 9726 14689 29378 44067 59977 88134 119954 179931 359862 643537 1287074 1930611 3861222 23810869 47621738 71432607 142865214