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19031429064 = 2335743138077
BaseRepresentation
bin10001101110010111…
…001000111111001000
31211010022222202201010
4101232113020333020
5302434021212224
612424245323520
71242421322634
oct215627107710
954108882633
1019031429064
11808682237a
1238317065a0
131a43b2303b
14cc77d9dc4
15765be6e29
hex46e5c8fc8

19031429064 has 32 divisors (see below), whose sum is σ = 47587201920. Its totient is φ = 6342659136.

The previous prime is 19031429057. The next prime is 19031429089. The reversal of 19031429064 is 46092413091.

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, 68794 + ... + 206870.

It is an arithmetic number, because the mean of its divisors is an integer number (1487100060).

Almost surely, 219031429064 is an apocalyptic number.

It is an amenable number.

19031429064 is an abundant number, since it is smaller than the sum of its proper divisors (28555772856).

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

19031429064 is a wasteful number, since it uses less digits than its factorization.

19031429064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143829 (or 143825 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 39.

The spelling of 19031429064 in words is "nineteen billion, thirty-one million, four hundred twenty-nine thousand, sixty-four".

Divisors: 1 2 3 4 6 8 12 24 5743 11486 17229 22972 34458 45944 68916 137832 138077 276154 414231 552308 828462 1104616 1656924 3313848 792976211 1585952422 2378928633 3171904844 4757857266 6343809688 9515714532 19031429064