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48290381 = 192541599
BaseRepresentation
bin1011100000110…
…1101001001101
310100212101221122
42320031221031
544330243011
64443010325
71124314166
oct270155115
9110771848
1048290381
1125293307
12142099a5
13a00a1b9
1465b076d
15438d3db
hex2e0da4d

48290381 has 4 divisors (see below), whose sum is σ = 50832000. Its totient is φ = 45748764.

The previous prime is 48290369. The next prime is 48290393. The reversal of 48290381 is 18309284.

It is a happy number.

48290381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 an interprime number because it is at equal distance from previous prime (48290369) and next prime (48290393).

It is a cyclic number.

It is not a de Polignac number, because 48290381 - 218 = 48028237 is a prime.

It is a super-2 number, since 2×482903812 = 4663921794250322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48290311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1270781 + ... + 1270818.

It is an arithmetic number, because the mean of its divisors is an integer number (12708000).

Almost surely, 248290381 is an apocalyptic number.

It is an amenable number.

48290381 is a deficient number, since it is larger than the sum of its proper divisors (2541619).

48290381 is a wasteful number, since it uses less digits than its factorization.

48290381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2541618.

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 48290381 is about 6949.1280748019. The cubic root of 48290381 is about 364.1555030350.

The spelling of 48290381 in words is "forty-eight million, two hundred ninety thousand, three hundred eighty-one".

Divisors: 1 19 2541599 48290381