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48003221 = 7311571409
BaseRepresentation
bin1011011100011…
…1100010010101
310100022211001002
42313013202111
544242100341
64432513045
71122010040
oct267074225
9110284032
1048003221
1125107592
12140ab785
139c39596
146537c57
15433329b
hex2dc7895

48003221 has 16 divisors (see below), whose sum is σ = 57031680. Its totient is φ = 39536640.

The previous prime is 48003211. The next prime is 48003229. The reversal of 48003221 is 12230084.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-48003221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 48003193 and 48003202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48003229) 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, 33365 + ... + 34773.

It is an arithmetic number, because the mean of its divisors is an integer number (3564480).

Almost surely, 248003221 is an apocalyptic number.

It is an amenable number.

48003221 is a deficient number, since it is larger than the sum of its proper divisors (9028459).

48003221 is a wasteful number, since it uses less digits than its factorization.

48003221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1604.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 48003221 is about 6928.4356820281. The cubic root of 48003221 is about 363.4322474755.

The spelling of 48003221 in words is "forty-eight million, three thousand, two hundred twenty-one".

Divisors: 1 7 31 157 217 1099 1409 4867 9863 34069 43679 221213 305753 1548491 6857603 48003221