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48117213 = 3313912821
BaseRepresentation
bin1011011110001…
…1010111011101
310100112121102000
42313203113131
544304222323
64435152513
71122663264
oct267432735
9110477360
1048117213
11251851a1
1214145739
139c79431
1465675db
154356e43
hex2de35dd

48117213 has 16 divisors (see below), whose sum is σ = 71803200. Its totient is φ = 31844880.

The previous prime is 48117211. The next prime is 48117229. The reversal of 48117213 is 31271184.

48117213 is a `hidden beast` number, since 481 + 172 + 13 = 666.

It is not a de Polignac number, because 48117213 - 21 = 48117211 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48117211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2658 + ... + 10163.

It is an arithmetic number, because the mean of its divisors is an integer number (4487700).

Almost surely, 248117213 is an apocalyptic number.

It is an amenable number.

48117213 is a deficient number, since it is larger than the sum of its proper divisors (23685987).

48117213 is a wasteful number, since it uses less digits than its factorization.

48117213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12969 (or 12963 counting only the distinct ones).

The product of its digits is 1344, while the sum is 27.

The square root of 48117213 is about 6936.6571920486. The cubic root of 48117213 is about 363.7196977627.

Adding to 48117213 its reverse (31271184), we get a palindrome (79388397).

The spelling of 48117213 in words is "forty-eight million, one hundred seventeen thousand, two hundred thirteen".

Divisors: 1 3 9 27 139 417 1251 3753 12821 38463 115389 346167 1782119 5346357 16039071 48117213