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48768021 = 331806223
BaseRepresentation
bin1011101000001…
…0010000010101
310101202200011000
42322002100111
544441034041
64501133513
71131343551
oct272022025
9111680130
1048768021
112558a155
12143ba299
13a146723
146696861
154434bb6
hex2e82415

48768021 has 8 divisors (see below), whose sum is σ = 72248960. Its totient is φ = 32511996.

The previous prime is 48768001. The next prime is 48768023. The reversal of 48768021 is 12086784.

It is not a de Polignac number, because 48768021 - 25 = 48767989 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 (48768023) 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, 903085 + ... + 903138.

It is an arithmetic number, because the mean of its divisors is an integer number (9031120).

Almost surely, 248768021 is an apocalyptic number.

It is an amenable number.

48768021 is a deficient number, since it is larger than the sum of its proper divisors (23480939).

48768021 is a wasteful number, since it uses less digits than its factorization.

48768021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1806232 (or 1806226 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 48768021 is about 6983.4104132580. The cubic root of 48768021 is about 365.3521864956.

The spelling of 48768021 in words is "forty-eight million, seven hundred sixty-eight thousand, twenty-one".

Divisors: 1 3 9 27 1806223 5418669 16256007 48768021