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48385281 = 3717135533
BaseRepresentation
bin1011100010010…
…0110100000001
310101001020010110
42320210310001
544341312111
64445021533
71125160650
oct270446401
9111036113
1048385281
112534863a
12142548a9
13a041459
1465d7197
1543ab5a6
hex2e24d01

48385281 has 16 divisors (see below), whose sum is σ = 78067584. Its totient is φ = 26022144.

The previous prime is 48385273. The next prime is 48385283. The reversal of 48385281 is 18258384.

It is not a de Polignac number, because 48385281 - 23 = 48385273 is a prime.

It is a super-2 number, since 2×483852812 = 4682270834897922, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (48385283) 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, 67410 + ... + 68123.

It is an arithmetic number, because the mean of its divisors is an integer number (4879224).

Almost surely, 248385281 is an apocalyptic number.

It is an amenable number.

48385281 is a deficient number, since it is larger than the sum of its proper divisors (29682303).

48385281 is a wasteful number, since it uses less digits than its factorization.

48385281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135560.

The product of its digits is 61440, while the sum is 39.

The square root of 48385281 is about 6955.9529181845. The cubic root of 48385281 is about 364.3938924288.

The spelling of 48385281 in words is "forty-eight million, three hundred eighty-five thousand, two hundred eighty-one".

Divisors: 1 3 7 17 21 51 119 357 135533 406599 948731 2304061 2846193 6912183 16128427 48385281