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48248781 = 37346889
BaseRepresentation
bin1011100000001…
…1011111001101
310100210021212220
42320003133031
544322430111
64442045553
71124052000
oct270033715
9110707786
1048248781
1125265029
12141a98b9
139cc4299
14659d537
154380e06
hex2e037cd

48248781 has 16 divisors (see below), whose sum is σ = 75024000. Its totient is φ = 27570144.

The previous prime is 48248747. The next prime is 48248789. The reversal of 48248781 is 18784284.

It is not a de Polignac number, because 48248781 - 27 = 48248653 is a prime.

It is a super-2 number, since 2×482487812 = 4655889735971922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48248789) 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, 22416 + ... + 24473.

It is an arithmetic number, because the mean of its divisors is an integer number (4689000).

Almost surely, 248248781 is an apocalyptic number.

It is an amenable number.

48248781 is a deficient number, since it is larger than the sum of its proper divisors (26775219).

48248781 is an equidigital number, since it uses as much as digits as its factorization.

48248781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46913 (or 46899 counting only the distinct ones).

The product of its digits is 114688, while the sum is 42.

The square root of 48248781 is about 6946.1342486307. The cubic root of 48248781 is about 364.0509051094.

The spelling of 48248781 in words is "forty-eight million, two hundred forty-eight thousand, seven hundred eighty-one".

Divisors: 1 3 7 21 49 147 343 1029 46889 140667 328223 984669 2297561 6892683 16082927 48248781