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268905960 = 23335248987
BaseRepresentation
bin10000000001110…
…010110111101000
3200201222211122000
4100001302313220
51022314442320
642403331000
76443443251
oct2001626750
9621884560
10268905960
11128877034
1276080a60
1343931b6b
14279dbb28
151891ac90
hex10072de8

268905960 has 64 divisors (see below), whose sum is σ = 896356800. Its totient is φ = 71707968.

The previous prime is 268905947. The next prime is 268905971. The reversal of 268905960 is 69509862.

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 123414 + ... + 125573.

It is an arithmetic number, because the mean of its divisors is an integer number (14005575).

Almost surely, 2268905960 is an apocalyptic number.

268905960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

268905960 is an abundant number, since it is smaller than the sum of its proper divisors (627450840).

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

268905960 is a wasteful number, since it uses less digits than its factorization.

268905960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249007 (or 248997 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The square root of 268905960 is about 16398.3523562582. The cubic root of 268905960 is about 645.4562483108.

The spelling of 268905960 in words is "two hundred sixty-eight million, nine hundred five thousand, nine hundred sixty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 18 20 24 27 30 36 40 45 54 60 72 90 108 120 135 180 216 270 360 540 1080 248987 497974 746961 995948 1244935 1493922 1991896 2240883 2489870 2987844 3734805 4481766 4979740 5975688 6722649 7469610 8963532 9959480 11204415 13445298 14939220 17927064 22408830 26890596 29878440 33613245 44817660 53781192 67226490 89635320 134452980 268905960