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268849080 = 23325977699
BaseRepresentation
bin10000000001100…
…100111110111000
3200201212221121100
4100001210332320
51022311132310
642402211400
76443115363
oct2001447670
9621787540
10268849080
11128838325
1276053b60
1343911cc6
14279c50da
1518908ec0
hex10064fb8

268849080 has 96 divisors (see below), whose sum is σ = 882882000. Its totient is φ = 70944768.

The previous prime is 268849079. The next prime is 268849099. The reversal of 268849080 is 80948862.

It is a happy number.

268849080 is a `hidden beast` number, since 2 + 6 + 88 + 490 + 80 = 666.

It is a super-3 number, since 3×2688490803 (a number of 26 digits) contains 333 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31071 + ... + 38769.

Almost surely, 2268849080 is an apocalyptic number.

268849080 is a gapful number since it is divisible by the number (20) 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 268849080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (441441000).

268849080 is an abundant number, since it is smaller than the sum of its proper divisors (614032920).

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

268849080 is a wasteful number, since it uses less digits than its factorization.

268849080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7813 (or 7806 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 45.

The square root of 268849080 is about 16396.6179439542. The cubic root of 268849080 is about 645.4107353239.

The spelling of 268849080 in words is "two hundred sixty-eight million, eight hundred forty-nine thousand, eighty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 18 20 24 30 36 40 45 60 72 90 97 120 180 194 291 360 388 485 582 776 873 970 1164 1455 1746 1940 2328 2910 3492 3880 4365 5820 6984 7699 8730 11640 15398 17460 23097 30796 34920 38495 46194 61592 69291 76990 92388 115485 138582 153980 184776 230970 277164 307960 346455 461940 554328 692910 746803 923880 1385820 1493606 2240409 2771640 2987212 3734015 4480818 5974424 6721227 7468030 8961636 11202045 13442454 14936060 17923272 22404090 26884908 29872120 33606135 44808180 53769816 67212270 89616360 134424540 268849080