Search a number
-
+
19072189590 = 2352922772729
BaseRepresentation
bin10001110000110010…
…101000010010010110
31211020011200121122020
4101300302220102112
5303024440031330
612432303114010
71243424636166
oct216062502226
954204617566
1019072189590
1180a7832363
1238432a2906
131a4c3c4aac
14cccdaa5a6
15769599210
hex470ca8496

19072189590 has 96 divisors (see below), whose sum is σ = 47594645280. Its totient is φ = 4891020288.

The previous prime is 19072189589. The next prime is 19072189597. The reversal of 19072189590 is 9598127091.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19072189597) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6987346 + ... + 6990074.

It is an arithmetic number, because the mean of its divisors is an integer number (495777555).

Almost surely, 219072189590 is an apocalyptic number.

19072189590 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 19072189590, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23797322640).

19072189590 is an abundant number, since it is smaller than the sum of its proper divisors (28522455690).

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

19072189590 is a wasteful number, since it uses less digits than its factorization.

19072189590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3074 (or 3045 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 51.

The spelling of 19072189590 in words is "nineteen billion, seventy-two million, one hundred eighty-nine thousand, five hundred ninety".

Divisors: 1 2 3 5 6 10 15 29 30 58 87 145 174 277 290 435 554 831 841 870 1385 1662 1682 2523 2729 2770 4155 4205 5046 5458 8033 8187 8310 8410 12615 13645 16066 16374 24099 25230 27290 40165 40935 48198 79141 80330 81870 120495 158282 232957 237423 240990 395705 465914 474846 698871 755933 791410 1164785 1187115 1397742 1511866 2267799 2295089 2329570 2374230 3494355 3779665 4535598 4590178 6885267 6988710 7559330 11338995 11475445 13770534 21922057 22677990 22950890 34426335 43844114 65766171 68852670 109610285 131532342 219220570 328830855 635739653 657661710 1271479306 1907218959 3178698265 3814437918 6357396530 9536094795 19072189590