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19023104 = 28193911
BaseRepresentation
bin100100010010…
…0010100000000
31022210110210102
41020210110000
514332214404
61515421532
7320456642
oct110442400
938713712
1019023104
11a813381
1264548a8
133c30899
142752892
151a0b71e
hex1224500

19023104 has 36 divisors (see below), whose sum is σ = 39980640. Its totient is φ = 9008640.

The previous prime is 19023097. The next prime is 19023107. The reversal of 19023104 is 40132091.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19023107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2909 + ... + 6819.

Almost surely, 219023104 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19023104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19990320).

19023104 is an abundant number, since it is smaller than the sum of its proper divisors (20957536).

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

19023104 is an equidigital number, since it uses as much as digits as its factorization.

19023104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3946 (or 3932 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 19023104 is about 4361.5483489238. The cubic root of 19023104 is about 266.9482802747.

Adding to 19023104 its reverse (40132091), we get a palindrome (59155195).

The spelling of 19023104 in words is "nineteen million, twenty-three thousand, one hundred four".

Divisors: 1 2 4 8 16 19 32 38 64 76 128 152 256 304 608 1216 2432 3911 4864 7822 15644 31288 62576 74309 125152 148618 250304 297236 500608 594472 1001216 1188944 2377888 4755776 9511552 19023104