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48072381 = 372327023
BaseRepresentation
bin1011011101100…
…0011010111101
310100110022220120
42313120122331
544301304011
64434205153
71122415500
oct267303275
9110408816
1048072381
1125154545
12141237b9
139c61bc6
146555137
154348a06
hex2dd86bd

48072381 has 12 divisors (see below), whose sum is σ = 74561472. Its totient is φ = 27469848.

The previous prime is 48072373. The next prime is 48072391. The reversal of 48072381 is 18327084.

It is not a de Polignac number, because 48072381 - 23 = 48072373 is a prime.

It is a super-3 number, since 3×480723813 (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48072391) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 163365 + ... + 163658.

It is an arithmetic number, because the mean of its divisors is an integer number (6213456).

Almost surely, 248072381 is an apocalyptic number.

It is an amenable number.

48072381 is a deficient number, since it is larger than the sum of its proper divisors (26489091).

48072381 is a wasteful number, since it uses less digits than its factorization.

48072381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327040 (or 327033 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 48072381 is about 6933.4249112542. The cubic root of 48072381 is about 363.6067004421.

The spelling of 48072381 in words is "forty-eight million, seventy-two thousand, three hundred eighty-one".

Divisors: 1 3 7 21 49 147 327023 981069 2289161 6867483 16024127 48072381