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19120008 = 2332932719
BaseRepresentation
bin100100011101…
…1111110001000
31022222101201110
41020323332020
514343320013
61521450320
7321342315
oct110737610
938871643
1019120008
11a87a166
1264a09a0
133c65a1b
142779d0c
151a2a2c3
hex123bf88

19120008 has 32 divisors (see below), whose sum is σ = 47980800. Its totient is φ = 6349248.

The previous prime is 19120001. The next prime is 19120021. The reversal of 19120008 is 80002191.

It is not an unprimeable number, because it can be changed into a prime (19120001) 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 7 ways as a sum of consecutive naturals, for example, 5673 + ... + 8391.

It is an arithmetic number, because the mean of its divisors is an integer number (1499400).

Almost surely, 219120008 is an apocalyptic number.

It is an amenable number.

19120008 is an abundant number, since it is smaller than the sum of its proper divisors (28860792).

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

19120008 is a wasteful number, since it uses less digits than its factorization.

19120008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3021 (or 3017 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 21.

The square root of 19120008 is about 4372.6431365937. The cubic root of 19120008 is about 267.4007923960.

Adding to 19120008 its reverse (80002191), we get a palindrome (99122199).

The spelling of 19120008 in words is "nineteen million, one hundred twenty thousand, eight".

Divisors: 1 2 3 4 6 8 12 24 293 586 879 1172 1758 2344 2719 3516 5438 7032 8157 10876 16314 21752 32628 65256 796667 1593334 2390001 3186668 4780002 6373336 9560004 19120008