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19481282000 = 245331212
BaseRepresentation
bin10010001001001011…
…001100010111010000
31212021200110122220222
4102021023030113100
5304344202011000
612541035252212
71256523110345
oct221113142720
955250418828
1019481282000
118297748564
1239382aa068
131ab609aacb
14d2b45a7cc
15790456a85
hex4892cc5d0

19481282000 has 60 divisors (see below), whose sum is σ = 47120837868. Its totient is φ = 7790016000.

The previous prime is 19481281993. The next prime is 19481282011. The reversal of 19481282000 is 28218491.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 6 ways, for example, as 18672675904 + 808606096 = 136648^2 + 28436^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6240440 + ... + 6243560.

Almost surely, 219481282000 is an apocalyptic number.

19481282000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19481282000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23560418934).

19481282000 is an abundant number, since it is smaller than the sum of its proper divisors (27639555868).

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

19481282000 is an frugal number, since it uses more digits than its factorization.

19481282000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6265 (or 3128 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 35.

The spelling of 19481282000 in words is "nineteen billion, four hundred eighty-one million, two hundred eighty-two thousand".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 80 100 125 200 250 400 500 1000 2000 3121 6242 12484 15605 24968 31210 49936 62420 78025 124840 156050 249680 312100 390125 624200 780250 1248400 1560500 3121000 6242000 9740641 19481282 38962564 48703205 77925128 97406410 155850256 194812820 243516025 389625640 487032050 779251280 974064100 1217580125 1948128200 2435160250 3896256400 4870320500 9740641000 19481282000