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6868472072 = 2371121496803
BaseRepresentation
bin1100110010110010…
…01001000100001000
3122201200020112101112
412121121021010020
5103031312101242
63053315105452
7332131022630
oct63131110410
918650215345
106868472072
112a05089800
1213b82a2288
13855ca3b77
144922bd6c0
152a2ed7c82
hex199649108

6868472072 has 96 divisors (see below), whose sum is σ = 16288776000. Its totient is φ = 2657677440.

The previous prime is 6868472071. The next prime is 6868472077. The reversal of 6868472072 is 2702748686.

It is a self number, because there is not a number n which added to its sum of digits gives 6868472072.

It is not an unprimeable number, because it can be changed into a prime (6868472071) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1006223 + ... + 1013025.

It is an arithmetic number, because the mean of its divisors is an integer number (169674750).

Almost surely, 26868472072 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 6868472072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8144388000).

6868472072 is an abundant number, since it is smaller than the sum of its proper divisors (9420303928).

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

6868472072 is a wasteful number, since it uses less digits than its factorization.

6868472072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6987 (or 6972 counting only the distinct ones).

The product of its (nonzero) digits is 1806336, while the sum is 50.

The square root of 6868472072 is about 82876.2455230689. The cubic root of 6868472072 is about 1900.8742119231.

The spelling of 6868472072 in words is "six billion, eight hundred sixty-eight million, four hundred seventy-two thousand, seventy-two".

Divisors: 1 2 4 7 8 11 14 22 28 44 56 77 88 121 149 154 242 298 308 484 596 616 847 968 1043 1192 1639 1694 2086 3278 3388 4172 6556 6776 6803 8344 11473 13112 13606 18029 22946 27212 36058 45892 47621 54424 72116 74833 91784 95242 126203 144232 149666 190484 252406 299332 380968 504812 523831 598664 823163 1009624 1013647 1047662 1646326 2027294 2095324 3292652 4054588 4190648 5762141 6585304 7095529 8109176 11150117 11524282 14191058 22300234 23048564 28382116 44600468 46097128 56764232 78050819 89200936 122651287 156101638 245302574 312203276 490605148 624406552 858559009 981210296 1717118018 3434236036 6868472072