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48977609 = 67017309
BaseRepresentation
bin1011101011010…
…1011011001001
310102011022122112
42322311123021
5100014240414
64505432105
71133205602
oct272653311
9112138575
1048977609
112571266a
121449b635
13a1bac45
14670cda9
154476d3e
hex2eb56c9

48977609 has 4 divisors (see below), whose sum is σ = 48991620. Its totient is φ = 48963600.

The previous prime is 48977597. The next prime is 48977639. The reversal of 48977609 is 90677984.

It is a happy 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 can be written as a sum of positive squares in 2 ways, for example, as 20675209 + 28302400 = 4547^2 + 5320^2 .

It is a cyclic number.

It is not a de Polignac number, because 48977609 - 224 = 32200393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (48977639) 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, 3047 + ... + 10355.

It is an arithmetic number, because the mean of its divisors is an integer number (12247905).

Almost surely, 248977609 is an apocalyptic number.

It is an amenable number.

48977609 is a deficient number, since it is larger than the sum of its proper divisors (14011).

48977609 is an equidigital number, since it uses as much as digits as its factorization.

48977609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14010.

The product of its (nonzero) digits is 762048, while the sum is 50.

The square root of 48977609 is about 6998.4004601052. The cubic root of 48977609 is about 365.8748240651.

The spelling of 48977609 in words is "forty-eight million, nine hundred seventy-seven thousand, six hundred nine".

Divisors: 1 6701 7309 48977609