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141927681 = 3722330307
BaseRepresentation
bin10000111010110…
…10010100000001
3100220001200011210
420131122110001
5242313141211
622030000333
73342236220
oct1035322401
9326050153
10141927681
1173129405
123b6460a9
132353389c
1414bc6cb7
15c6d79a6
hex875a501

141927681 has 16 divisors (see below), whose sum is σ = 217247744. Its totient is φ = 80735184.

The previous prime is 141927647. The next prime is 141927683. The reversal of 141927681 is 186729141.

It is not a de Polignac number, because 141927681 - 215 = 141894913 is a prime.

It is a super-2 number, since 2×1419276812 = 40286933268075522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (141927683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10471 + ... + 19836.

It is an arithmetic number, because the mean of its divisors is an integer number (13577984).

Almost surely, 2141927681 is an apocalyptic number.

It is an amenable number.

141927681 is a deficient number, since it is larger than the sum of its proper divisors (75320063).

141927681 is a wasteful number, since it uses less digits than its factorization.

141927681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30540.

The product of its digits is 24192, while the sum is 39.

The square root of 141927681 is about 11913.3404635308. The cubic root of 141927681 is about 521.6217625213.

The spelling of 141927681 in words is "one hundred forty-one million, nine hundred twenty-seven thousand, six hundred eighty-one".

Divisors: 1 3 7 21 223 669 1561 4683 30307 90921 212149 636447 6758461 20275383 47309227 141927681