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48591491 = 1317219871
BaseRepresentation
bin1011100101011…
…1001010000011
310101102200222212
42321113022003
544414411431
64453252335
71130010104
oct271271203
9111380885
1048591491
1125479563
12143340ab
13a0b4280
14664c3ab
1543ec72b
hex2e57283

48591491 has 8 divisors (see below), whose sum is σ = 55407744. Its totient is φ = 42215040.

The previous prime is 48591463. The next prime is 48591497. The reversal of 48591491 is 19419584.

48591491 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 48591491 - 26 = 48591427 is a prime.

It is a super-2 number, since 2×485914912 = 4722265995206162, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (48591497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109715 + ... + 110156.

It is an arithmetic number, because the mean of its divisors is an integer number (6925968).

Almost surely, 248591491 is an apocalyptic number.

48591491 is a deficient number, since it is larger than the sum of its proper divisors (6816253).

48591491 is a wasteful number, since it uses less digits than its factorization.

48591491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219901.

The product of its digits is 51840, while the sum is 41.

The square root of 48591491 is about 6970.7597146939. The cubic root of 48591491 is about 364.9108207725.

The spelling of 48591491 in words is "forty-eight million, five hundred ninety-one thousand, four hundred ninety-one".

Divisors: 1 13 17 221 219871 2858323 3737807 48591491