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142423008 = 253721317137
BaseRepresentation
bin10000111110100…
…11001111100000
3100220222211122020
420133103033200
5242430014013
622044341440
73346401300
oct1037231740
9326884566
10142423008
1173437572
123b844880
1323678190
1414cb5600
15c784623
hex87d33e0

142423008 has 288 divisors, whose sum is σ = 499522464. Its totient is φ = 35094528.

The previous prime is 142422979. The next prime is 142423013. The reversal of 142423008 is 800324241.

142423008 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 (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1039516 + ... + 1039652.

It is an arithmetic number, because the mean of its divisors is an integer number (1734453).

Almost surely, 2142423008 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142423008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (249761232).

142423008 is an abundant number, since it is smaller than the sum of its proper divisors (357099456).

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

142423008 is a wasteful number, since it uses less digits than its factorization.

142423008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194 (or 179 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 142423008 is about 11934.1111105939. Note that the first 5 decimals coincide. The cubic root of 142423008 is about 522.2278771951.

Adding to 142423008 its reverse (800324241), we get a palindrome (942747249).

The spelling of 142423008 in words is "one hundred forty-two million, four hundred twenty-three thousand, eight".