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21481041179 = 131735195233
BaseRepresentation
bin10100000000010111…
…101010110100011011
32001110001100221210202
4110000113222310123
5322443121304204
613511313132415
71360214560133
oct240027526433
961401327722
1021481041179
1191235401a4
1241b5b5a10b
13204448c670
14107ac91ac3
1585acbce1e
hex5005ead1b

21481041179 has 8 divisors (see below), whose sum is σ = 23135005152. Its totient is φ = 19827302400.

The previous prime is 21481041167. The next prime is 21481041181. The reversal of 21481041179 is 97114018412.

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 21481041179 - 220 = 21479992603 is a prime.

It is a super-2 number, since 2×214810411792 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21481041149) 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, 177947 + ... + 273179.

It is an arithmetic number, because the mean of its divisors is an integer number (2891875644).

Almost surely, 221481041179 is an apocalyptic number.

21481041179 is a deficient number, since it is larger than the sum of its proper divisors (1653963973).

21481041179 is a wasteful number, since it uses less digits than its factorization.

21481041179 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112597.

The product of its (nonzero) digits is 16128, while the sum is 38.

The spelling of 21481041179 in words is "twenty-one billion, four hundred eighty-one million, forty-one thousand, one hundred seventy-nine".

Divisors: 1 13 17351 95233 225563 1238029 1652387783 21481041179