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34217856768 = 2831713191987
BaseRepresentation
bin11111110111100010…
…110000111100000000
310021022200221020010110
4133313202300330000
51030034232404033
623415223231320
72320643661234
oct376742607400
9107280836113
1034217856768
111356a0a7277
12676b5a8540
1332c4183834
1419286ac5c4
15d54084363
hex7f78b0f00

34217856768 has 144 divisors (see below), whose sum is σ = 96548094720. Its totient is φ = 10721476608.

The previous prime is 34217856763. The next prime is 34217856791. The reversal of 34217856768 is 86765871243.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34217856763) 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, 17219871 + ... + 17221857.

It is an arithmetic number, because the mean of its divisors is an integer number (670472880).

Almost surely, 234217856768 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 34217856768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48274047360).

34217856768 is an abundant number, since it is smaller than the sum of its proper divisors (62330237952).

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

34217856768 is a wasteful number, since it uses less digits than its factorization.

34217856768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3342 (or 3328 counting only the distinct ones).

The product of its digits is 13547520, while the sum is 57.

The spelling of 34217856768 in words is "thirty-four billion, two hundred seventeen million, eight hundred fifty-six thousand, seven hundred sixty-eight".

Divisors: 1 2 3 4 6 8 12 16 17 24 32 34 48 51 64 68 96 102 128 136 192 204 256 272 384 408 544 768 816 1088 1319 1632 1987 2176 2638 3264 3957 3974 4352 5276 5961 6528 7914 7948 10552 11922 13056 15828 15896 21104 22423 23844 31656 31792 33779 42208 44846 47688 63312 63584 67269 67558 84416 89692 95376 101337 126624 127168 134538 135116 168832 179384 190752 202674 253248 254336 269076 270232 337664 358768 381504 405348 506496 508672 538152 540464 717536 763008 810696 1012992 1076304 1080928 1435072 1526016 1621392 2152608 2161856 2620853 2870144 3242784 4305216 4323712 5241706 5740288 6485568 7862559 8610432 8647424 10483412 12971136 15725118 17220864 20966824 25942272 31450236 41933648 44554501 62900472 83867296 89109002 125800944 133663503 167734592 178218004 251601888 267327006 335469184 356436008 503203776 534654012 670938368 712872016 1006407552 1069308024 1425744032 2012815104 2138616048 2851488064 4277232096 5702976128 8554464192 11405952256 17108928384 34217856768