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141244431 = 347081477
BaseRepresentation
bin10000110101100…
…11100000001111
3100211202221221020
420122303200033
5242124310211
622003205223
73333362226
oct1032634017
9324687836
10141244431
1172802039
123b376813
13233548b3
1414a89cbd
15c600306
hex86b380f

141244431 has 4 divisors (see below), whose sum is σ = 188325912. Its totient is φ = 94162952.

The previous prime is 141244427. The next prime is 141244457. The reversal of 141244431 is 134442141.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 141244431 - 22 = 141244427 is a prime.

It is a super-2 number, since 2×1412444312 = 39899978577027522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (141244421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23540736 + ... + 23540741.

It is an arithmetic number, because the mean of its divisors is an integer number (47081478).

Almost surely, 2141244431 is an apocalyptic number.

141244431 is the 7517-th centered pentagonal number.

141244431 is a deficient number, since it is larger than the sum of its proper divisors (47081481).

141244431 is an equidigital number, since it uses as much as digits as its factorization.

141244431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47081480.

The product of its digits is 1536, while the sum is 24.

The square root of 141244431 is about 11884.6300321045. The cubic root of 141244431 is about 520.7833742430.

Adding to 141244431 its reverse (134442141), we get a palindrome (275686572).

The spelling of 141244431 in words is "one hundred forty-one million, two hundred forty-four thousand, four hundred thirty-one".

Divisors: 1 3 47081477 141244431