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48379909 = 17191011483
BaseRepresentation
bin1011100010001…
…1100000000101
310101000221202111
42320203200011
544341124114
64444541021
71125136204
oct270434005
9111027674
1048379909
11253445a6
1214251771
13a03bb86
1465d523b
1543a9bc4
hex2e23805

48379909 has 16 divisors (see below), whose sum is σ = 54492480. Its totient is φ = 42681600.

The previous prime is 48379907. The next prime is 48379913. The reversal of 48379909 is 90997384.

It is not a de Polignac number, because 48379909 - 21 = 48379907 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48379901) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31882 + ... + 33364.

It is an arithmetic number, because the mean of its divisors is an integer number (3405780).

Almost surely, 248379909 is an apocalyptic number.

It is an amenable number.

48379909 is a deficient number, since it is larger than the sum of its proper divisors (6112571).

48379909 is a wasteful number, since it uses less digits than its factorization.

48379909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1620.

The product of its (nonzero) digits is 489888, while the sum is 49.

The square root of 48379909 is about 6955.5667633918. The cubic root of 48379909 is about 364.3804062583.

The spelling of 48379909 in words is "forty-eight million, three hundred seventy-nine thousand, nine hundred nine".

Divisors: 1 17 19 101 323 1483 1717 1919 25211 28177 32623 149783 479009 2546311 2845877 48379909