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142660056 = 2337111719239
BaseRepresentation
bin10001000000011…
…01000111011000
3100221102212210210
420200031013120
5243010110211
622053411120
73351406350
oct1040150730
9327385723
10142660056
1173589680
123b939aa0
132372c046
1414d37b60
15c7ce9a6
hex880d1d8

142660056 has 256 divisors, whose sum is σ = 497664000. Its totient is φ = 32901120.

The previous prime is 142659991. The next prime is 142660061. The reversal of 142660056 is 650066241.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 596785 + ... + 597023.

It is an arithmetic number, because the mean of its divisors is an integer number (1944000).

Almost surely, 2142660056 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 142660056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (248832000).

142660056 is an abundant number, since it is smaller than the sum of its proper divisors (355003944).

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

142660056 is a wasteful number, since it uses less digits than its factorization.

142660056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302 (or 298 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 142660056 is about 11944.0385129989. The cubic root of 142660056 is about 522.5174475832.

The spelling of 142660056 in words is "one hundred forty-two million, six hundred sixty thousand, fifty-six".