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19413047860 = 225970652393
BaseRepresentation
bin10010000101000110…
…111001101000110100
31212002221002000021121
4102011012321220310
5304224220012420
612530200553324
71255034120113
oct220506715064
955087060247
1019413047860
118262183208
123919482844
131aa4bc9c8b
14d22377c7a
157894792aa
hex4851b9a34

19413047860 has 12 divisors (see below), whose sum is σ = 40767400548. Its totient is φ = 7765219136.

The previous prime is 19413047851. The next prime is 19413047867. The reversal of 19413047860 is 6874031491.

It can be written as a sum of positive squares in 2 ways, for example, as 12965921424 + 6447126436 = 113868^2 + 80294^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19413047867) 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, 485326177 + ... + 485326216.

It is an arithmetic number, because the mean of its divisors is an integer number (3397283379).

Almost surely, 219413047860 is an apocalyptic number.

19413047860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19413047860 is an abundant number, since it is smaller than the sum of its proper divisors (21354352688).

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

19413047860 is a wasteful number, since it uses less digits than its factorization.

19413047860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 970652402 (or 970652400 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 43.

The spelling of 19413047860 in words is "nineteen billion, four hundred thirteen million, forty-seven thousand, eight hundred sixty".

Divisors: 1 2 4 5 10 20 970652393 1941304786 3882609572 4853261965 9706523930 19413047860