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268201140 = 223561127577
BaseRepresentation
bin11111111110001…
…10110010110100
3200200200000210120
433333012302310
51022124414030
642340251540
76434446344
oct1777066264
9620600716
10268201140
11128435539
12759a0bb0
13437460cc
1427896d24
151882c010
hexffc6cb4

268201140 has 96 divisors (see below), whose sum is σ = 770617344. Its totient is φ = 69672960.

The previous prime is 268201139. The next prime is 268201159. The reversal of 268201140 is 41102862.

It is a self number, because there is not a number n which added to its sum of digits gives 268201140.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 464532 + ... + 465108.

It is an arithmetic number, because the mean of its divisors is an integer number (8027264).

Almost surely, 2268201140 is an apocalyptic number.

268201140 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 268201140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (385308672).

268201140 is an abundant number, since it is smaller than the sum of its proper divisors (502416204).

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

268201140 is a wasteful number, since it uses less digits than its factorization.

268201140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 777 (or 775 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 268201140 is about 16376.8476820174. The cubic root of 268201140 is about 644.8918273014.

The spelling of 268201140 in words is "two hundred sixty-eight million, two hundred one thousand, one hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 61 122 127 183 244 254 305 366 381 508 577 610 635 732 762 915 1154 1220 1270 1524 1731 1830 1905 2308 2540 2885 3462 3660 3810 5770 6924 7620 7747 8655 11540 15494 17310 23241 30988 34620 35197 38735 46482 70394 73279 77470 92964 105591 116205 140788 146558 154940 175985 211182 219837 232410 293116 351970 366395 422364 439674 464820 527955 703940 732790 879348 1055910 1099185 1465580 2111820 2198370 4396740 4470019 8940038 13410057 17880076 22350095 26820114 44700190 53640228 67050285 89400380 134100570 268201140