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140939185 = 528519887
BaseRepresentation
bin10000110011010…
…00111110110001
3100211012110012211
420121220332301
5242040023220
621552452121
73330651262
oct1031507661
9324173184
10140939185
1172613772
123b24a041
132327898a
1414a0a969
15c58eb5a
hex8668fb1

140939185 has 8 divisors (see below), whose sum is σ = 169203456. Its totient is φ = 112700400.

The previous prime is 140939177. The next prime is 140939191. The reversal of 140939185 is 581939041.

140939185 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 140939185 - 23 = 140939177 is a prime.

It is a Duffinian number.

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, 9312 + ... + 19198.

It is an arithmetic number, because the mean of its divisors is an integer number (21150432).

Almost surely, 2140939185 is an apocalyptic number.

It is an amenable number.

140939185 is a deficient number, since it is larger than the sum of its proper divisors (28264271).

140939185 is an equidigital number, since it uses as much as digits as its factorization.

140939185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12743.

The product of its (nonzero) digits is 38880, while the sum is 40.

The square root of 140939185 is about 11871.7810374013. The cubic root of 140939185 is about 520.4079454114.

The spelling of 140939185 in words is "one hundred forty million, nine hundred thirty-nine thousand, one hundred eighty-five".

Divisors: 1 5 2851 9887 14255 49435 28187837 140939185