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19560404472 = 2337216632997
BaseRepresentation
bin10010001101111001…
…000001010111111000
31212111012100111112220
4102031321001113320
5310024430420342
612552543204040
71261503460200
oct221571012770
955435314486
1019560404472
11832837a434
12395a8a6620
131ac95b193b
14d37b75400
157973855ec
hex48de415f8

19560404472 has 48 divisors (see below), whose sum is σ = 56884853160. Its totient is φ = 5588686656.

The previous prime is 19560404467. The next prime is 19560404477. The reversal of 19560404472 is 27440406591.

It is an interprime number because it is at equal distance from previous prime (19560404467) and next prime (19560404477).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19560404477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8315323 + ... + 8317674.

Almost surely, 219560404472 is an apocalyptic number.

19560404472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19560404472 is an abundant number, since it is smaller than the sum of its proper divisors (37324448688).

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

19560404472 is a wasteful number, since it uses less digits than its factorization.

19560404472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16633020 (or 16633009 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 42.

The spelling of 19560404472 in words is "nineteen billion, five hundred sixty million, four hundred four thousand, four hundred seventy-two".

Divisors: 1 2 3 4 6 7 8 12 14 21 24 28 42 49 56 84 98 147 168 196 294 392 588 1176 16632997 33265994 49898991 66531988 99797982 116430979 133063976 199595964 232861958 349292937 399191928 465723916 698585874 815016853 931447832 1397171748 1630033706 2445050559 2794343496 3260067412 4890101118 6520134824 9780202236 19560404472