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142183902 = 2373385331
BaseRepresentation
bin10000111100110…
…00110111011110
3100220112200122110
420132120313132
5242344341102
622035254450
73344354220
oct1036306736
9326480573
10142183902
1173293963
123b74a426
13235c33b3
1414c52410
15c73886c
hex8798dde

142183902 has 16 divisors (see below), whose sum is σ = 324991872. Its totient is φ = 40623960.

The previous prime is 142183901. The next prime is 142183919. The reversal of 142183902 is 209381241.

142183902 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 142183902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142183901) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1692624 + ... + 1692707.

It is an arithmetic number, because the mean of its divisors is an integer number (20311992).

Almost surely, 2142183902 is an apocalyptic number.

142183902 is an abundant number, since it is smaller than the sum of its proper divisors (182807970).

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

142183902 is a wasteful number, since it uses less digits than its factorization.

142183902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3385343.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 142183902 is about 11924.0891476037. The cubic root of 142183902 is about 521.9354671328.

The spelling of 142183902 in words is "one hundred forty-two million, one hundred eighty-three thousand, nine hundred two".

Divisors: 1 2 3 6 7 14 21 42 3385331 6770662 10155993 20311986 23697317 47394634 71091951 142183902