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48791443961 = 13322208213
BaseRepresentation
bin101101011100001100…
…100101100111111001
311122221100201011102002
4231130030211213321
51244411102201321
634225305550345
73345045300521
oct553414454771
9148840634362
1048791443961
1119768553007
1295581a53b5
1347a7571000
14250c014681
15140871920b
hexb5c3259f9

48791443961 has 8 divisors (see below), whose sum is σ = 52855549320. Its totient is φ = 45038253936.

The previous prime is 48791443951. The next prime is 48791443991. The reversal of 48791443961 is 16934419784.

It can be written as a sum of positive squares in 4 ways, for example, as 30639001600 + 18152442361 = 175040^2 + 134731^2 .

It is not a de Polignac number, because 48791443961 - 214 = 48791427577 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 48791443897 and 48791443906.

It is not an unprimeable number, because it can be changed into a prime (48791443931) 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, 11101910 + ... + 11106303.

It is an arithmetic number, because the mean of its divisors is an integer number (6606943665).

Almost surely, 248791443961 is an apocalyptic number.

It is an amenable number.

48791443961 is a deficient number, since it is larger than the sum of its proper divisors (4064105359).

48791443961 is an equidigital number, since it uses as much as digits as its factorization.

48791443961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22208252 (or 22208226 counting only the distinct ones).

The product of its digits is 5225472, while the sum is 56.

The spelling of 48791443961 in words is "forty-eight billion, seven hundred ninety-one million, four hundred forty-three thousand, nine hundred sixty-one".

Divisors: 1 13 169 2197 22208213 288706769 3753187997 48791443961