Search a number
-
+
64800960 = 263579643
BaseRepresentation
bin1111011100110…
…0100011000000
311111221020012120
43313030203000
5113042112320
610232524240
71414541040
oct367144300
9144836176
1064800960
113363aa14
1219850680
131056b283
14886b720
155a50440
hex3dcc8c0

64800960 has 112 divisors (see below), whose sum is σ = 235159296. Its totient is φ = 14810112.

The previous prime is 64800941. The next prime is 64800961. The reversal of 64800960 is 6900846.

It is a tau number, because it is divible by the number of its divisors (112).

It is not an unprimeable number, because it can be changed into a prime (64800961) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1899 + ... + 11541.

Almost surely, 264800960 is an apocalyptic number.

64800960 is a gapful number since it is divisible by the number (60) 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 64800960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117579648).

64800960 is an abundant number, since it is smaller than the sum of its proper divisors (170358336).

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

64800960 is a wasteful number, since it uses less digits than its factorization.

64800960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9670 (or 9660 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 64800960 is about 8049.9043472578. The cubic root of 64800960 is about 401.6617535445.

The spelling of 64800960 in words is "sixty-four million, eight hundred thousand, nine hundred sixty".

Divisors: 1 2 3 4 5 6 7 8 10 12 14 15 16 20 21 24 28 30 32 35 40 42 48 56 60 64 70 80 84 96 105 112 120 140 160 168 192 210 224 240 280 320 336 420 448 480 560 672 840 960 1120 1344 1680 2240 3360 6720 9643 19286 28929 38572 48215 57858 67501 77144 96430 115716 135002 144645 154288 192860 202503 231432 270004 289290 308576 337505 385720 405006 462864 540008 578580 617152 675010 771440 810012 925728 1012515 1080016 1157160 1350020 1542880 1620024 1851456 2025030 2160032 2314320 2700040 3085760 3240048 4050060 4320064 4628640 5400080 6480096 8100120 9257280 10800160 12960192 16200240 21600320 32400480 64800960