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142831029 = 3114328213
BaseRepresentation
bin10001000001101…
…10110110110101
3100221202120100010
420200312312311
5243031043104
622101210433
73353020665
oct1040666665
9327676303
10142831029
1173696080
123ba00a19
132378bb03
1414d801a5
15c815489
hex8836db5

142831029 has 8 divisors (see below), whose sum is σ = 207754272. Its totient is φ = 86564240.

The previous prime is 142831021. The next prime is 142831067. The reversal of 142831029 is 920138241.

142831029 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 142831029 - 23 = 142831021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 142830987 and 142831005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142831021) 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, 2164074 + ... + 2164139.

It is an arithmetic number, because the mean of its divisors is an integer number (25969284).

Almost surely, 2142831029 is an apocalyptic number.

It is an amenable number.

142831029 is a deficient number, since it is larger than the sum of its proper divisors (64923243).

142831029 is a wasteful number, since it uses less digits than its factorization.

142831029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4328227.

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

The square root of 142831029 is about 11951.1936223960. The cubic root of 142831029 is about 522.7261037715.

The spelling of 142831029 in words is "one hundred forty-two million, eight hundred thirty-one thousand, twenty-nine".

Divisors: 1 3 11 33 4328213 12984639 47610343 142831029