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48285181 = 76897883
BaseRepresentation
bin1011100000110…
…0010111111101
310100212010211001
42320030113331
544330111211
64442530301
71124263060
oct270142775
9110763731
1048285181
112528a40a
1214206991
13a007a19
1465ac8d7
15438bac1
hex2e0c5fd

48285181 has 4 divisors (see below), whose sum is σ = 55183072. Its totient is φ = 41387292.

The previous prime is 48285169. The next prime is 48285191. The reversal of 48285181 is 18158284.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 48285181 - 27 = 48285053 is a prime.

It is a super-2 number, since 2×482851812 = 4662917408405522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 48285181.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48285131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3448935 + ... + 3448948.

It is an arithmetic number, because the mean of its divisors is an integer number (13795768).

Almost surely, 248285181 is an apocalyptic number.

It is an amenable number.

48285181 is a deficient number, since it is larger than the sum of its proper divisors (6897891).

48285181 is an equidigital number, since it uses as much as digits as its factorization.

48285181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6897890.

The product of its digits is 20480, while the sum is 37.

The square root of 48285181 is about 6948.7539170703. The cubic root of 48285181 is about 364.1424315803.

The spelling of 48285181 in words is "forty-eight million, two hundred eighty-five thousand, one hundred eighty-one".

Divisors: 1 7 6897883 48285181