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21232041401 = 43988354773
BaseRepresentation
bin10011110001100001…
…110011110110111001
32000210200211110022202
4103301201303312321
5321440400311101
613430500155545
71351102242224
oct236141636671
960720743282
1021232041401
119005a2aa5a
124146698bb5
132004a0a30c
141055b965bb
15843ed536b
hex4f1873db9

21232041401 has 8 divisors (see below), whose sum is σ = 21304895040. Its totient is φ = 21159299952.

The previous prime is 21232041377. The next prime is 21232041419. The reversal of 21232041401 is 10414023212.

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 21232041401 - 210 = 21232040377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21232041301) 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, 360251 + ... + 415023.

It is an arithmetic number, because the mean of its divisors is an integer number (2663111880).

Almost surely, 221232041401 is an apocalyptic number.

It is an amenable number.

21232041401 is a deficient number, since it is larger than the sum of its proper divisors (72853639).

21232041401 is an equidigital number, since it uses as much as digits as its factorization.

21232041401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56095.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 21232041401 its reverse (10414023212), we get a palindrome (31646064613).

The spelling of 21232041401 in words is "twenty-one billion, two hundred thirty-two million, forty-one thousand, four hundred one".

Divisors: 1 439 883 54773 387637 24045347 48364559 21232041401