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268368464 = 247131989109
BaseRepresentation
bin11111111111011…
…11101001010000
3200200222112022202
433333233221100
51022200242324
642344022332
76436044230
oct1777575120
9620875282
10268368464
1112853a221
1275a619a8
13437a4310
14278dbcc0
15188618ae
hexffefa50

268368464 has 160 divisors (see below), whose sum is σ = 687456000. Its totient is φ = 98537472.

The previous prime is 268368389. The next prime is 268368467. The reversal of 268368464 is 464863862.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268368467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2462042 + ... + 2462150.

It is an arithmetic number, because the mean of its divisors is an integer number (4296600).

Almost surely, 2268368464 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 268368464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (343728000).

268368464 is an abundant number, since it is smaller than the sum of its proper divisors (419087536).

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

268368464 is a wasteful number, since it uses less digits than its factorization.

268368464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245 (or 239 counting only the distinct ones).

The product of its digits is 1327104, while the sum is 47.

The square root of 268368464 is about 16381.9554388357. The cubic root of 268368464 is about 645.0259100623.

The spelling of 268368464 in words is "two hundred sixty-eight million, three hundred sixty-eight thousand, four hundred sixty-four".

Divisors: 1 2 4 7 8 13 14 16 19 26 28 38 52 56 76 89 91 104 109 112 133 152 178 182 208 218 247 266 304 356 364 436 494 532 623 712 728 763 872 988 1064 1157 1246 1417 1424 1456 1526 1691 1729 1744 1976 2071 2128 2314 2492 2834 3052 3382 3458 3952 4142 4628 4984 5668 6104 6764 6916 8099 8284 9256 9701 9919 9968 11336 11837 12208 13528 13832 14497 16198 16568 18512 19402 19838 21983 22672 23674 26923 27056 27664 28994 32396 33136 38804 39676 43966 47348 53846 57988 64792 67907 77608 79352 87932 94696 107692 115976 126113 129584 135814 153881 155216 158704 175864 184319 188461 189392 215384 231952 252226 271628 307762 351728 368638 376922 430768 504452 543256 615524 737276 753844 882791 1008904 1086512 1231048 1290233 1474552 1507688 1765582 2017808 2396147 2462096 2580466 2949104 3015376 3531164 4792294 5160932 7062328 9584588 10321864 14124656 16773029 19169176 20643728 33546058 38338352 67092116 134184232 268368464