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142261441 = 722988747
BaseRepresentation
bin10000111101010…
…11110011000001
3100220200122000021
420132223303001
5242404331231
622041053441
73345126250
oct1036536301
9326618007
10142261441
1173337143
123b787281
132361c78a
1414c72797
15c751811
hex87abcc1

142261441 has 8 divisors (see below), whose sum is σ = 163296320. Its totient is φ = 121404528.

The previous prime is 142261439. The next prime is 142261447. The reversal of 142261441 is 144162241.

142261441 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 142261441 - 21 = 142261439 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142261447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42771 + ... + 45976.

It is an arithmetic number, because the mean of its divisors is an integer number (20412040).

Almost surely, 2142261441 is an apocalyptic number.

It is an amenable number.

142261441 is a deficient number, since it is larger than the sum of its proper divisors (21034879).

142261441 is an equidigital number, since it uses as much as digits as its factorization.

142261441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88983.

The product of its digits is 1536, while the sum is 25.

The square root of 142261441 is about 11927.3400639036. The cubic root of 142261441 is about 522.0303278475.

The spelling of 142261441 in words is "one hundred forty-two million, two hundred sixty-one thousand, four hundred forty-one".

Divisors: 1 7 229 1603 88747 621229 20323063 142261441