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48999993 = 3719227541
BaseRepresentation
bin1011101011101…
…0111000111001
310102012110100120
42322322320321
5100020444433
64510123453
71133331060
oct272727071
9112173316
1048999993
1125728469
12144b0589
13a1c81a3
1467171d7
15447d7b3
hex2ebae39

48999993 has 32 divisors (see below), whose sum is σ = 79088640. Its totient is φ = 26360640.

The previous prime is 48999989. The next prime is 49000027. The reversal of 48999993 is 39999984.

It is not a de Polignac number, because 48999993 - 22 = 48999989 is a prime.

It is not an unprimeable number, because it can be changed into a prime (48999983) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 90303 + ... + 90843.

It is an arithmetic number, because the mean of its divisors is an integer number (2471520).

Almost surely, 248999993 is an apocalyptic number.

It is an amenable number.

48999993 is a deficient number, since it is larger than the sum of its proper divisors (30088647).

48999993 is a wasteful number, since it uses less digits than its factorization.

48999993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 797.

The product of its digits is 5668704, while the sum is 60.

The square root of 48999993 is about 6999.9995000000. Note that the first 3 decimals coincide. The cubic root of 48999993 is about 365.9305535770.

Subtracting from 48999993 its reverse (39999984), we obtain a palindrome (9000009).

The spelling of 48999993 in words is "forty-eight million, nine hundred ninety-nine thousand, nine hundred ninety-three".

Divisors: 1 3 7 19 21 57 133 227 399 541 681 1589 1623 3787 4313 4767 10279 11361 12939 30191 30837 71953 90573 122807 215859 368421 859649 2333333 2578947 6999999 16333331 48999993