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142892019 = 3829751
BaseRepresentation
bin10001000010001…
…01101111110011
3100221212200000000
420201011233303
5243040021034
622102401043
73353363544
oct1041055763
9327780000
10142892019
1173727986
123ba30183
13237b07ba
1414d984cb
15c828599
hex8845bf3

142892019 has 36 divisors (see below), whose sum is σ = 222012960. Its totient is φ = 91854000.

The previous prime is 142891999. The next prime is 142892083. The reversal of 142892019 is 910298241.

142892019 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 142892019 - 215 = 142859251 is a prime.

It is a super-2 number, since 2×1428920192 = 40836258187792722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (142892419) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 189894 + ... + 190644.

Almost surely, 2142892019 is an apocalyptic number.

142892019 is a deficient number, since it is larger than the sum of its proper divisors (79120941).

142892019 is an frugal number, since it uses more digits than its factorization.

142892019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 804 (or 783 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 142892019 is about 11953.7449780393. The cubic root of 142892019 is about 522.8004959362.

The spelling of 142892019 in words is "one hundred forty-two million, eight hundred ninety-two thousand, nineteen".

Divisors: 1 3 9 27 29 81 87 243 261 729 751 783 2187 2253 2349 6561 6759 7047 20277 21141 21779 60831 63423 65337 182493 190269 196011 547479 588033 1642437 1764099 4927311 5292297 15876891 47630673 142892019