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33680094672 = 24371573831667
BaseRepresentation
bin11111010111011111…
…010111010111010000
310012221020001002012210
4133113133113113100
51022434101012142
623250013152120
72301424036560
oct372737272720
9105836032183
1033680094672
1113313598694
12663b48b640
133239939703
1418b70c6da0
15d21c5c49c
hex7d77d75d0

33680094672 has 160 divisors (see below), whose sum is σ = 100391288832. Its totient is φ = 9530906112.

The previous prime is 33680094653. The next prime is 33680094703. The reversal of 33680094672 is 27649008633.

It is a super-2 number, since 2×336800946722 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20203183 + ... + 20204849.

Almost surely, 233680094672 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 33680094672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50195644416).

33680094672 is an abundant number, since it is smaller than the sum of its proper divisors (66711194160).

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

33680094672 is a wasteful number, since it uses less digits than its factorization.

33680094672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2225 (or 2219 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 48.

The spelling of 33680094672 in words is "thirty-three billion, six hundred eighty million, ninety-four thousand, six hundred seventy-two".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 42 48 56 84 112 157 168 314 336 383 471 628 766 942 1099 1149 1256 1532 1667 1884 2198 2298 2512 2681 3064 3297 3334 3768 4396 4596 5001 5362 6128 6594 6668 7536 8043 8792 9192 10002 10724 11669 13188 13336 16086 17584 18384 20004 21448 23338 26376 26672 32172 35007 40008 42896 46676 52752 60131 64344 70014 80016 93352 120262 128688 140028 180393 186704 240524 261719 280056 360786 420917 481048 523438 560112 638461 721572 785157 841834 962096 1046876 1262751 1276922 1443144 1570314 1683668 1832033 1915383 2093752 2525502 2553844 2886288 3140628 3367336 3664066 3830766 4187504 4469227 5051004 5107688 5496099 6281256 6734672 7328132 7661532 8938454 10102008 10215376 10992198 12562512 13407681 14656264 15323064 17876908 20204016 21984396 26815362 29312528 30646128 35753816 43968792 53630724 71507632 87937584 100238377 107261448 200476754 214522896 300715131 400953508 601430262 701668639 801907016 1202860524 1403337278 1603814032 2105005917 2405721048 2806674556 4210011834 4811442096 5613349112 8420023668 11226698224 16840047336 33680094672