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142664080 = 24513137177
BaseRepresentation
bin10001000000011…
…10000110010000
3100221110002022211
420200032012100
5243010222310
622053441504
73351424156
oct1040160620
9327402284
10142664080
11735916a9
123b940294
1323730b20
1414d393d6
15c7d0c8a
hex880e190

142664080 has 40 divisors (see below), whose sum is σ = 357211512. Its totient is φ = 52675584.

The previous prime is 142664059. The next prime is 142664099. The reversal of 142664080 is 80466241.

142664080 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 4460544 + 138203536 = 2112^2 + 11756^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67549 + ... + 69628.

Almost surely, 2142664080 is an apocalyptic number.

142664080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142664080 is an abundant number, since it is smaller than the sum of its proper divisors (214547432).

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

142664080 is a wasteful number, since it uses less digits than its factorization.

142664080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137203 (or 137197 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 142664080 is about 11944.2069640475. The cubic root of 142664080 is about 522.5223604054.

The spelling of 142664080 in words is "one hundred forty-two million, six hundred sixty-four thousand, eighty".

Divisors: 1 2 4 5 8 10 13 16 20 26 40 52 65 80 104 130 208 260 520 1040 137177 274354 548708 685885 1097416 1371770 1783301 2194832 2743540 3566602 5487080 7133204 8916505 10974160 14266408 17833010 28532816 35666020 71332040 142664080