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19104628 = 2223281739
BaseRepresentation
bin100100011100…
…0001101110100
31022221121121211
41020320031310
514342322003
61521251204
7321246424
oct110701564
938847554
1019104628
11a869654
126493b04
133c5ba1a
142774484
151a2596d
hex1238374

19104628 has 24 divisors (see below), whose sum is σ = 35058240. Its totient is φ = 9092160.

The previous prime is 19104623. The next prime is 19104629. The reversal of 19104628 is 82640191.

It is a happy number.

It is a super-2 number, since 2×191046282 = 729973622036768, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 19104628.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19104623) 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 7 ways as a sum of consecutive naturals, for example, 25483 + ... + 26221.

It is an arithmetic number, because the mean of its divisors is an integer number (1460760).

Almost surely, 219104628 is an apocalyptic number.

It is an amenable number.

19104628 is a deficient number, since it is larger than the sum of its proper divisors (15953612).

19104628 is a wasteful number, since it uses less digits than its factorization.

19104628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1047 (or 1045 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 19104628 is about 4370.8841210904. The cubic root of 19104628 is about 267.3290747237.

The spelling of 19104628 in words is "nineteen million, one hundred four thousand, six hundred twenty-eight".

Divisors: 1 2 4 23 46 92 281 562 739 1124 1478 2956 6463 12926 16997 25852 33994 67988 207659 415318 830636 4776157 9552314 19104628