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48503993 = 251193243
BaseRepresentation
bin1011100100000…
…1110010111001
310101021020222012
42321001302321
544404111433
64451335305
71126164026
oct271016271
9111236865
1048503993
112541984a
12142b1535
13a0834b5
14662854d
1543d1848
hex2e41cb9

48503993 has 4 divisors (see below), whose sum is σ = 48697488. Its totient is φ = 48310500.

The previous prime is 48503989. The next prime is 48503999. The reversal of 48503993 is 39930584.

48503993 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 48503993 - 22 = 48503989 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 48503993.

It is not an unprimeable number, because it can be changed into a prime (48503999) 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 3 ways as a sum of consecutive naturals, for example, 96371 + ... + 96872.

It is an arithmetic number, because the mean of its divisors is an integer number (12174372).

Almost surely, 248503993 is an apocalyptic number.

It is an amenable number.

48503993 is a deficient number, since it is larger than the sum of its proper divisors (193495).

48503993 is a wasteful number, since it uses less digits than its factorization.

48503993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193494.

The product of its (nonzero) digits is 116640, while the sum is 41.

The square root of 48503993 is about 6964.4808133844. The cubic root of 48503993 is about 364.6916592814.

The spelling of 48503993 in words is "forty-eight million, five hundred three thousand, nine hundred ninety-three".

Divisors: 1 251 193243 48503993