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142851812 = 2269151683
BaseRepresentation
bin10001000001110…
…11111011100100
3100221210121211212
420200323323210
5243032224222
622101450552
73353135405
oct1040737344
9327717755
10142851812
11736aa754
123ba10a58
13237983cc
1414d879ac
15c81b6e2
hex883bee4

142851812 has 12 divisors (see below), whose sum is σ = 250357296. Its totient is φ = 71321160.

The previous prime is 142851811. The next prime is 142851851. The reversal of 142851812 is 218158241.

142851812 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (142851811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23078 + ... + 28605.

It is an arithmetic number, because the mean of its divisors is an integer number (20863108).

Almost surely, 2142851812 is an apocalyptic number.

It is an amenable number.

142851812 is a deficient number, since it is larger than the sum of its proper divisors (107505484).

142851812 is a wasteful number, since it uses less digits than its factorization.

142851812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52378 (or 52376 counting only the distinct ones).

The product of its digits is 5120, while the sum is 32.

The square root of 142851812 is about 11952.0630855095. The cubic root of 142851812 is about 522.7514560818.

The spelling of 142851812 in words is "one hundred forty-two million, eight hundred fifty-one thousand, eight hundred twelve".

Divisors: 1 2 4 691 1382 2764 51683 103366 206732 35712953 71425906 142851812