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142241865 = 359482791
BaseRepresentation
bin10000111101001…
…11000001001001
3100220122122011020
420132213001021
5242403214430
622040423053
73345015213
oct1036470111
9326578136
10142241865
1173323467
123b777a89
13236138ac
1414c695b3
15c74ab10
hex87a7049

142241865 has 8 divisors (see below), whose sum is σ = 227587008. Its totient is φ = 75862320.

The previous prime is 142241837. The next prime is 142241899. The reversal of 142241865 is 568142241.

It is a happy number.

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

It is not a de Polignac number, because 142241865 - 212 = 142237769 is a prime.

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, 4741381 + ... + 4741410.

It is an arithmetic number, because the mean of its divisors is an integer number (28448376).

Almost surely, 2142241865 is an apocalyptic number.

142241865 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

142241865 is a deficient number, since it is larger than the sum of its proper divisors (85345143).

142241865 is an equidigital number, since it uses as much as digits as its factorization.

142241865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9482799.

The product of its digits is 15360, while the sum is 33.

The square root of 142241865 is about 11926.5194000597. The cubic root of 142241865 is about 522.0063819481.

The spelling of 142241865 in words is "one hundred forty-two million, two hundred forty-one thousand, eight hundred sixty-five".

Divisors: 1 3 5 15 9482791 28448373 47413955 142241865