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16008420 = 2235377211
BaseRepresentation
bin111101000100…
…010011100100
31010010022102110
4331010103210
513044232140
61331041020
7253032531
oct75042344
933108373
1016008420
1190443aa
125440170
13341664c
1421a9d88
151613380
hexf444e4

16008420 has 48 divisors (see below), whose sum is σ = 46041408. Its totient is φ = 4152960.

The previous prime is 16008403. The next prime is 16008449. The reversal of 16008420 is 2480061.

It is an unprimeable number.

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, 1386 + ... + 5825.

It is an arithmetic number, because the mean of its divisors is an integer number (959196).

Almost surely, 216008420 is an apocalyptic number.

16008420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16008420 is an abundant number, since it is smaller than the sum of its proper divisors (30032988).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16008420 is a wasteful number, since it uses less digits than its factorization.

16008420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7260 (or 7258 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 16008420 is about 4001.0523615669. The cubic root of 16008420 is about 252.0284044576.

Adding to 16008420 its reverse (2480061), we get a palindrome (18488481).

The spelling of 16008420 in words is "sixteen million, eight thousand, four hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 37 60 74 111 148 185 222 370 444 555 740 1110 2220 7211 14422 21633 28844 36055 43266 72110 86532 108165 144220 216330 266807 432660 533614 800421 1067228 1334035 1600842 2668070 3201684 4002105 5336140 8004210 16008420