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142285764 = 22311857147
BaseRepresentation
bin10000111101100…
…01101111000100
3100220201212101010
420132301233010
5242411121024
622041402220
73345260205
oct1036615704
9326655333
10142285764
1173353445
123b799370
132362a87a
1414c7b5ac
15c758b29
hex87b1bc4

142285764 has 12 divisors (see below), whose sum is σ = 332000144. Its totient is φ = 47428584.

The previous prime is 142285747. The next prime is 142285769. The reversal of 142285764 is 467582241.

142285764 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (142285769) 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, 5928562 + ... + 5928585.

Almost surely, 2142285764 is an apocalyptic number.

It is an amenable number.

142285764 is an abundant number, since it is smaller than the sum of its proper divisors (189714380).

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

142285764 is a wasteful number, since it uses less digits than its factorization.

142285764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11857154 (or 11857152 counting only the distinct ones).

The product of its digits is 107520, while the sum is 39.

The square root of 142285764 is about 11928.3596525256. The cubic root of 142285764 is about 522.0600773472.

The spelling of 142285764 in words is "one hundred forty-two million, two hundred eighty-five thousand, seven hundred sixty-four".

Divisors: 1 2 3 4 6 12 11857147 23714294 35571441 47428588 71142882 142285764