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48015891 = 32711193359
BaseRepresentation
bin1011011100101…
…0101000010011
310100100110102100
42313022220103
544243002031
64433051443
71122062010
oct267125023
9110313370
1048015891
1125116060
12140b6b83
139c42291
14653c707
154336de6
hex2dcaa13

48015891 has 48 divisors (see below), whose sum is σ = 87160320. Its totient is φ = 24744960.

The previous prime is 48015887. The next prime is 48015893. The reversal of 48015891 is 19851084.

48015891 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 48015891 - 22 = 48015887 is a prime.

It is not an unprimeable number, because it can be changed into a prime (48015893) 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 47 ways as a sum of consecutive naturals, for example, 133570 + ... + 133928.

It is an arithmetic number, because the mean of its divisors is an integer number (1815840).

Almost surely, 248015891 is an apocalyptic number.

48015891 is a deficient number, since it is larger than the sum of its proper divisors (39144429).

48015891 is a wasteful number, since it uses less digits than its factorization.

48015891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 576 (or 573 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 36.

The square root of 48015891 is about 6929.3499695137. The cubic root of 48015891 is about 363.4642195072.

It can be divided in two parts, 480158 and 91, that added together give a square (480249 = 6932).

The spelling of 48015891 in words is "forty-eight million, fifteen thousand, eight hundred ninety-one".

Divisors: 1 3 7 9 11 21 33 63 77 99 193 231 359 579 693 1077 1351 1737 2123 2513 3231 3949 4053 6369 7539 11847 12159 14861 19107 22617 27643 35541 44583 69287 82929 133749 207861 248787 485009 623583 762157 1455027 2286471 4365081 5335099 6859413 16005297 48015891