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22153421481 = 38218994487
BaseRepresentation
bin10100101000011100…
…100110001010101001
32010011220120102011220
4110220130212022221
5330332233441411
614102132412253
71412660655432
oct245034461251
963156512156
1022153421481
1194390354a4
124363177089
13212087b329
1411022ba489
15899d36b06
hex5287262a9

22153421481 has 8 divisors (see below), whose sum is σ = 29573876544. Its totient is φ = 14750957040.

The previous prime is 22153421467. The next prime is 22153421513. The reversal of 22153421481 is 18412435122.

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

It is not a de Polignac number, because 22153421481 - 214 = 22153405097 is a prime.

It is a super-2 number, since 2×221534214812 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22153421441) 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, 4494781 + ... + 4499706.

It is an arithmetic number, because the mean of its divisors is an integer number (3696734568).

Almost surely, 222153421481 is an apocalyptic number.

It is an amenable number.

22153421481 is a deficient number, since it is larger than the sum of its proper divisors (7420455063).

22153421481 is an equidigital number, since it uses as much as digits as its factorization.

22153421481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8995311.

The product of its digits is 15360, while the sum is 33.

The spelling of 22153421481 in words is "twenty-two billion, one hundred fifty-three million, four hundred twenty-one thousand, four hundred eighty-one".

Divisors: 1 3 821 2463 8994487 26983461 7384473827 22153421481