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19706128060 = 225985306403
BaseRepresentation
bin10010010110100100…
…111010011010111100
31212212100120000201211
4102112210322122330
5310324232044220
613015230414204
71265223216253
oct222644723274
955770500654
1019706128060
1183a2660753
12399b661364
131b20844208
14d4d26979a
157a506cb5a
hex49693a6bc

19706128060 has 12 divisors (see below), whose sum is σ = 41382868968. Its totient is φ = 7882451216.

The previous prime is 19706128049. The next prime is 19706128063. The reversal of 19706128060 is 6082160791.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19706128063) 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, 492653182 + ... + 492653221.

It is an arithmetic number, because the mean of its divisors is an integer number (3448572414).

Almost surely, 219706128060 is an apocalyptic number.

19706128060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19706128060 is an abundant number, since it is smaller than the sum of its proper divisors (21676740908).

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

19706128060 is a wasteful number, since it uses less digits than its factorization.

19706128060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 985306412 (or 985306410 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 40.

The spelling of 19706128060 in words is "nineteen billion, seven hundred six million, one hundred twenty-eight thousand, sixty".

Divisors: 1 2 4 5 10 20 985306403 1970612806 3941225612 4926532015 9853064030 19706128060