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142025688 = 23327281797
BaseRepresentation
bin10000111011100…
…10001111011000
3100220020122121200
420131302033120
5242324310223
622032034200
73343125030
oct1035621730
9326218550
10142025688
1173196002
123b692960
132356938c
1414c108c0
15c706a43
hex87723d8

142025688 has 48 divisors (see below), whose sum is σ = 439604880. Its totient is φ = 40578624.

The previous prime is 142025687. The next prime is 142025693. The reversal of 142025688 is 886520241.

142025688 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142025683) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 140395 + ... + 141402.

It is an arithmetic number, because the mean of its divisors is an integer number (9158435).

Almost surely, 2142025688 is an apocalyptic number.

142025688 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

142025688 is an abundant number, since it is smaller than the sum of its proper divisors (297579192).

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

142025688 is a wasteful number, since it uses less digits than its factorization.

142025688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281816 (or 281809 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The square root of 142025688 is about 11917.4530836081. The cubic root of 142025688 is about 521.7418021095.

The spelling of 142025688 in words is "one hundred forty-two million, twenty-five thousand, six hundred eighty-eight".

Divisors: 1 2 3 4 6 7 8 9 12 14 18 21 24 28 36 42 56 63 72 84 126 168 252 504 281797 563594 845391 1127188 1690782 1972579 2254376 2536173 3381564 3945158 5072346 5917737 6763128 7890316 10144692 11835474 15780632 17753211 20289384 23670948 35506422 47341896 71012844 142025688