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20541331141 = 110319739439
BaseRepresentation
bin10011001000010110…
…111101011011000101
31222000120010201222021
4103020112331123011
5314032040044031
613234144003141
71325014301542
oct231026753305
958016121867
1020541331141
118791056131
123b933004b1
131c248a1416
14dcc159bc9
1580354a511
hex4c85bd6c5

20541331141 has 8 divisors (see below), whose sum is σ = 20572554240. Its totient is φ = 20510133072.

The previous prime is 20541331121. The next prime is 20541331159. The reversal of 20541331141 is 14113314502.

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

It is a cyclic number.

It is not a de Polignac number, because 20541331141 - 211 = 20541329093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20541331121) 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, 2171500 + ... + 2180938.

It is an arithmetic number, because the mean of its divisors is an integer number (2571569280).

Almost surely, 220541331141 is an apocalyptic number.

It is an amenable number.

20541331141 is a deficient number, since it is larger than the sum of its proper divisors (31223099).

20541331141 is a wasteful number, since it uses less digits than its factorization.

20541331141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12515.

The product of its (nonzero) digits is 1440, while the sum is 25.

Adding to 20541331141 its reverse (14113314502), we get a palindrome (34654645643).

The spelling of 20541331141 in words is "twenty billion, five hundred forty-one million, three hundred thirty-one thousand, one hundred forty-one".

Divisors: 1 1103 1973 9439 2176219 10411217 18623147 20541331141