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19782000553 = 7357673471
BaseRepresentation
bin10010011011000110…
…010101111110101001
31220001122022202020011
4102123012111332221
5311003143004203
613030540531521
71300134142000
oct223306257651
956048282204
1019782000553
118431472897
123a00b50ba1
131b3348a993
14d59379c37
157aba5876d
hex49b195fa9

19782000553 has 8 divisors (see below), whose sum is σ = 23069388800. Its totient is φ = 16956000180.

The previous prime is 19782000523. The next prime is 19782000569. The reversal of 19782000553 is 35500028791.

It is not a de Polignac number, because 19782000553 - 29 = 19782000041 is a prime.

It is the 140649-th Hogben number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19782000523) by changing a digit.

It is a nontrivial repunit in base 140648.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28836393 + ... + 28837078.

It is an arithmetic number, because the mean of its divisors is an integer number (2883673600).

Almost surely, 219782000553 is an apocalyptic number.

It is an amenable number.

19782000553 is a deficient number, since it is larger than the sum of its proper divisors (3287388247).

19782000553 is an frugal number, since it uses more digits than its factorization.

19782000553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57673492 (or 57673478 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 40.

The spelling of 19782000553 in words is "nineteen billion, seven hundred eighty-two million, five hundred fifty-three", and thus it is an aban number.

Divisors: 1 7 49 343 57673471 403714297 2826000079 19782000553