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48805204561 = 2209192
BaseRepresentation
bin101101011101000001…
…000101001001010001
311122222022121021101221
4231131001011021101
51244423113021221
634230520525041
73345303252061
oct553501051121
9148868537357
1048805204561
11197752a1603
129560920781
1347aa37b489
14250db973a1
151409a36541
hexb5d045251

48805204561 has 3 divisors (see below), whose sum is σ = 48805425481. Its totient is φ = 48804983642.

The previous prime is 48805204559. The next prime is 48805204597. The reversal of 48805204561 is 16540250884.

The square root of 48805204561 is 220919.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 48805204561 - 21 = 48805204559 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (48805202561) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 110460 + ... + 331378.

Almost surely, 248805204561 is an apocalyptic number.

48805204561 is the 220919-th square number.

48805204561 is the 110460-th centered octagonal number.

It is an amenable number.

48805204561 is a deficient number, since it is larger than the sum of its proper divisors (220920).

48805204561 is an frugal number, since it uses more digits than its factorization.

48805204561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441838 (or 220919 counting only the distinct ones).

The product of its (nonzero) digits is 307200, while the sum is 43.

The spelling of 48805204561 in words is "forty-eight billion, eight hundred five million, two hundred four thousand, five hundred sixty-one".

Divisors: 1 220919 48805204561