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17939888596 = 227640710307
BaseRepresentation
bin10000101101010011…
…001111100111010100
31201022021001202200101
4100231103033213110
5243220102413341
612124054023444
71203365352130
oct205523174724
951267052611
1017939888596
117676665913
123588047b84
1318cb9449c6
14c228603c0
156eee82831
hex42d4cf9d4

17939888596 has 12 divisors (see below), whose sum is σ = 35879777248. Its totient is φ = 7688523672.

The previous prime is 17939888567. The next prime is 17939888599. The reversal of 17939888596 is 69588893971.

17939888596 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17939888599) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 320355126 + ... + 320355181.

Almost surely, 217939888596 is an apocalyptic number.

It is an amenable number.

17939888596 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

17939888596 is a wasteful number, since it uses less digits than its factorization.

17939888596 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 640710318 (or 640710316 counting only the distinct ones).

The product of its digits is 235146240, while the sum is 73.

The spelling of 17939888596 in words is "seventeen billion, nine hundred thirty-nine million, eight hundred eighty-eight thousand, five hundred ninety-six".

Divisors: 1 2 4 7 14 28 640710307 1281420614 2562841228 4484972149 8969944298 17939888596