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8480399 = 1723341
BaseRepresentation
bin100000010110…
…011010001111
3120221211220212
4200112122033
54132333044
6501433035
7132040124
oct40263217
916854825
108480399
1148724a4
122a0b77b
1319abcb5
1411aa74b
15b27a9e
hex81668f

8480399 has 16 divisors (see below), whose sum is σ = 9616320. Its totient is φ = 7448320.

The previous prime is 8480369. The next prime is 8480431. The reversal of 8480399 is 9930848.

It is a de Polignac number, because none of the positive numbers 2k-8480399 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8480369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 206819 + ... + 206859.

It is an arithmetic number, because the mean of its divisors is an integer number (601020).

Almost surely, 28480399 is an apocalyptic number.

8480399 is a deficient number, since it is larger than the sum of its proper divisors (1135921).

8480399 is an equidigital number, since it uses as much as digits as its factorization.

8480399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127 (or 81 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 8480399 is about 2912.1124634876. The cubic root of 8480399 is about 203.9257627481.

The spelling of 8480399 in words is "eight million, four hundred eighty thousand, three hundred ninety-nine".

Divisors: 1 17 23 41 391 529 697 943 8993 12167 16031 21689 206839 368713 498847 8480399