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48078321 = 3472291489
BaseRepresentation
bin1011011101100…
…1110111110001
310100110122001120
42313121313301
544302001241
64434252453
71122442014
oct267316761
9110418046
1048078321
1125158a55
1214127129
139c64815
14655737b
15434a666
hex2dd9df1

48078321 has 16 divisors (see below), whose sum is σ = 65798400. Its totient is φ = 31212288.

The previous prime is 48078319. The next prime is 48078361. The reversal of 48078321 is 12387084.

It is not a de Polignac number, because 48078321 - 21 = 48078319 is a prime.

It is a super-3 number, since 3×480783213 (a number of 24 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (48078301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31545 + ... + 33033.

It is an arithmetic number, because the mean of its divisors is an integer number (4112400).

Almost surely, 248078321 is an apocalyptic number.

It is an amenable number.

48078321 is a deficient number, since it is larger than the sum of its proper divisors (17720079).

48078321 is a wasteful number, since it uses less digits than its factorization.

48078321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1768.

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

The square root of 48078321 is about 6933.8532577493. The cubic root of 48078321 is about 363.6216760185.

The spelling of 48078321 in words is "forty-eight million, seventy-eight thousand, three hundred twenty-one".

Divisors: 1 3 47 141 229 687 1489 4467 10763 32289 69983 209949 340981 1022943 16026107 48078321