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11922000481 = 23518347847
BaseRepresentation
bin10110001101001101…
…10100101001100001
31010202212100101010101
423012212310221201
5143404013003411
65251001502401
7601303221616
oct130646645141
933685311111
1011922000481
115068727466
1223887a1a01
13117cc54b71
1481151650d
1549b9b48c1
hex2c69b4a61

11922000481 has 4 divisors (see below), whose sum is σ = 12440348352. Its totient is φ = 11403652612.

The previous prime is 11922000479. The next prime is 11922000539. The reversal of 11922000481 is 18400022911.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11922000481 - 21 = 11922000479 is a prime.

It is a super-2 number, since 2×119220004812 (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 (11922000451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 259173901 + ... + 259173946.

It is an arithmetic number, because the mean of its divisors is an integer number (3110087088).

Almost surely, 211922000481 is an apocalyptic number.

11922000481 is the 69057-th centered pentagonal number.

It is an amenable number.

11922000481 is a deficient number, since it is larger than the sum of its proper divisors (518347871).

11922000481 is an equidigital number, since it uses as much as digits as its factorization.

11922000481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 518347870.

The product of its (nonzero) digits is 1152, while the sum is 28.

The spelling of 11922000481 in words is "eleven billion, nine hundred twenty-two million, four hundred eighty-one", and thus it is an aban number.

Divisors: 1 23 518347847 11922000481