Search a number
-
+
19286099112 = 23371913034637
BaseRepresentation
bin10001111101100010…
…101000010010101000
31211210002012100100010
4101331202220102220
5303444220132422
612505424011520
71251633065130
oct217542502250
954702170303
1019286099112
1181a7555795
1238a2a60ba0
131a8480c287
14d0d56dac0
1577d24eb0c
hex47d8a84a8

19286099112 has 128 divisors (see below), whose sum is σ = 58060339200. Its totient is φ = 5215166208.

The previous prime is 19286099069. The next prime is 19286099117. The reversal of 19286099112 is 21199068291.

It is not an unprimeable number, because it can be changed into a prime (19286099117) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4156858 + ... + 4161494.

It is an arithmetic number, because the mean of its divisors is an integer number (453596400).

Almost surely, 219286099112 is an apocalyptic number.

19286099112 is a gapful number since it is divisible by the number (12) 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 19286099112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29030169600).

19286099112 is an abundant number, since it is smaller than the sum of its proper divisors (38774240088).

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

19286099112 is a wasteful number, since it uses less digits than its factorization.

19286099112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5975 (or 5971 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 48.

The spelling of 19286099112 in words is "nineteen billion, two hundred eighty-six million, ninety-nine thousand, one hundred twelve".

Divisors: 1 2 3 4 6 7 8 12 14 19 21 24 28 38 42 56 57 76 84 114 133 152 168 228 266 399 456 532 798 1064 1303 1596 2606 3192 3909 4637 5212 7818 9121 9274 10424 13911 15636 18242 18548 24757 27363 27822 31272 32459 36484 37096 49514 54726 55644 64918 72968 74271 88103 97377 99028 109452 111288 129836 148542 173299 176206 194754 198056 218904 259672 264309 297084 346598 352412 389508 519897 528618 594168 616721 693196 704824 779016 1039794 1057236 1233442 1386392 1850163 2079588 2114472 2466884 3700326 4159176 4933768 6042011 7400652 12084022 14801304 18126033 24168044 36252066 42294077 48336088 72504132 84588154 114798209 126882231 145008264 169176308 229596418 253764462 338352616 344394627 459192836 507528924 688789254 803587463 918385672 1015057848 1377578508 1607174926 2410762389 2755157016 3214349852 4821524778 6428699704 9643049556 19286099112