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48490839 = 331795957
BaseRepresentation
bin1011100011111…
…0100101010111
310101020120221000
42320332211113
544403201324
64451154343
71126110465
oct270764527
9111216830
1048490839
112540a981
12142a59b3
13a07a507
146623835
1543cc9c9
hex2e3e957

48490839 has 8 divisors (see below), whose sum is σ = 71838320. Its totient is φ = 32327208.

The previous prime is 48490837. The next prime is 48490853. The reversal of 48490839 is 93809484.

It is a happy number.

48490839 is a `hidden beast` number, since 484 + 90 + 83 + 9 = 666.

It is not a de Polignac number, because 48490839 - 21 = 48490837 is a prime.

It is a super-2 number, since 2×484908392 = 4702722933847842, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 48490794 and 48490803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48490837) 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, 897952 + ... + 898005.

It is an arithmetic number, because the mean of its divisors is an integer number (8979790).

Almost surely, 248490839 is an apocalyptic number.

48490839 is a deficient number, since it is larger than the sum of its proper divisors (23347481).

48490839 is a wasteful number, since it uses less digits than its factorization.

48490839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1795966 (or 1795960 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The square root of 48490839 is about 6963.5363860613. The cubic root of 48490839 is about 364.6586888838.

The spelling of 48490839 in words is "forty-eight million, four hundred ninety thousand, eight hundred thirty-nine".

Divisors: 1 3 9 27 1795957 5387871 16163613 48490839