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19744045704 = 233391407619
BaseRepresentation
bin10010011000110101…
…100011101010001000
31212221222220102222000
4102120311203222020
5310413433430304
613023103231000
71266163422315
oct223065435210
955858812860
1019744045704
118411aa9849
1239b02a8460
131b2865bca6
14d542d9d0c
157a855c939
hex498d63a88

19744045704 has 32 divisors (see below), whose sum is σ = 54844572000. Its totient is φ = 6581348496.

The previous prime is 19744045663. The next prime is 19744045747. The reversal of 19744045704 is 40754044791.

19744045704 is a `hidden beast` number, since 1 + 9 + 74 + 4 + 0 + 4 + 570 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 19744045704.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45703594 + ... + 45704025.

It is an arithmetic number, because the mean of its divisors is an integer number (1713892875).

Almost surely, 219744045704 is an apocalyptic number.

It is an amenable number.

19744045704 is an abundant number, since it is smaller than the sum of its proper divisors (35100526296).

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

19744045704 is a wasteful number, since it uses less digits than its factorization.

19744045704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91407634 (or 91407624 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 45.

The spelling of 19744045704 in words is "nineteen billion, seven hundred forty-four million, forty-five thousand, seven hundred four".

Divisors: 1 2 3 4 6 8 9 12 18 24 27 36 54 72 108 216 91407619 182815238 274222857 365630476 548445714 731260952 822668571 1096891428 1645337142 2193782856 2468005713 3290674284 4936011426 6581348568 9872022852 19744045704