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20483481923 = 53449860759
BaseRepresentation
bin10011000100111010…
…010010000101000011
31221212112021200202122
4103010322102011003
5313422232410143
613224320034455
71323412503122
oct230472220503
957775250678
1020483481923
118761434163
123b77a62a2b
131c158c8408
14dc45bbab9
157ed41ec68
hex4c4e92143

20483481923 has 8 divisors (see below), whose sum is σ = 20916468000. Its totient is φ = 20052218368.

The previous prime is 20483481919. The next prime is 20483481947. The reversal of 20483481923 is 32918438402.

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 20483481923 - 22 = 20483481919 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20483480923) 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, 406583 + ... + 454176.

It is an arithmetic number, because the mean of its divisors is an integer number (2614558500).

Almost surely, 220483481923 is an apocalyptic number.

20483481923 is a deficient number, since it is larger than the sum of its proper divisors (432986077).

20483481923 is an equidigital number, since it uses as much as digits as its factorization.

20483481923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 861261.

The product of its (nonzero) digits is 331776, while the sum is 44.

The spelling of 20483481923 in words is "twenty billion, four hundred eighty-three million, four hundred eighty-one thousand, nine hundred twenty-three".

Divisors: 1 53 449 23797 860759 45620227 386480791 20483481923