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48486991 = 742116453
BaseRepresentation
bin1011100011110…
…1101001001111
310101020101122111
42320331221033
544403040431
64451124451
71126063330
oct270755117
9111211574
1048486991
1125407aa3
12142a3727
13a078837
146622287
1543cb7b1
hex2e3da4f

48486991 has 8 divisors (see below), whose sum is σ = 55548704. Its totient is φ = 41459040.

The previous prime is 48486989. The next prime is 48487003. The reversal of 48486991 is 19968484.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 48486991 - 21 = 48486989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48486491) 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, 5280 + ... + 11173.

It is an arithmetic number, because the mean of its divisors is an integer number (6943588).

Almost surely, 248486991 is an apocalyptic number.

48486991 is a deficient number, since it is larger than the sum of its proper divisors (7061713).

48486991 is a wasteful number, since it uses less digits than its factorization.

48486991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16881.

The product of its digits is 497664, while the sum is 49.

The square root of 48486991 is about 6963.2600841847. The cubic root of 48486991 is about 364.6490427748.

The spelling of 48486991 in words is "forty-eight million, four hundred eighty-six thousand, nine hundred ninety-one".

Divisors: 1 7 421 2947 16453 115171 6926713 48486991