Search a number
-
+
32768560 = 24511231619
BaseRepresentation
bin111110100000…
…0001000110000
32021122211000101
41331000020300
531342043220
63130202144
7545346106
oct175001060
967584011
1032768560
1117551560
12ab83354
136a341a6
1444cdc76
152d2430a
hex1f40230

32768560 has 80 divisors (see below), whose sum is σ = 86780160. Its totient is φ = 11390720.

The previous prime is 32768551. The next prime is 32768591. The reversal of 32768560 is 6586723.

32768560 is a nontrivial binomial coefficient, being equal to C(8096, 2).

It is a tau number, because it is divible by the number of its divisors (80).

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19431 + ... + 21049.

It is an arithmetic number, because the mean of its divisors is an integer number (1084752).

Almost surely, 232768560 is an apocalyptic number.

32768560 is the 8095-th triangular number and also the 4048-th hexagonal number.

32768560 is the 2699-th centered nonagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 32768560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43390080).

32768560 is an abundant number, since it is smaller than the sum of its proper divisors (54011600).

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

32768560 is a wasteful number, since it uses less digits than its factorization.

32768560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1666 (or 1660 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 32768560 is about 5724.3829361775. The cubic root of 32768560 is about 320.0018229063.

The spelling of 32768560 in words is "thirty-two million, seven hundred sixty-eight thousand, five hundred sixty".

Divisors: 1 2 4 5 8 10 11 16 20 22 23 40 44 46 55 80 88 92 110 115 176 184 220 230 253 368 440 460 506 880 920 1012 1265 1619 1840 2024 2530 3238 4048 5060 6476 8095 10120 12952 16190 17809 20240 25904 32380 35618 37237 64760 71236 74474 89045 129520 142472 148948 178090 186185 284944 297896 356180 372370 409607 595792 712360 744740 819214 1424720 1489480 1638428 2048035 2978960 3276856 4096070 6553712 8192140 16384280 32768560