Base | Representation |
---|---|
bin | 10010000101000110… |
… | …111001101000110100 |
3 | 1212002221002000021121 |
4 | 102011012321220310 |
5 | 304224220012420 |
6 | 12530200553324 |
7 | 1255034120113 |
oct | 220506715064 |
9 | 55087060247 |
10 | 19413047860 |
11 | 8262183208 |
12 | 3919482844 |
13 | 1aa4bc9c8b |
14 | d22377c7a |
15 | 7894792aa |
hex | 4851b9a34 |
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".
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