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80693089488 = 24331119985331
BaseRepresentation
bin100101100100110101…
…1101101010011010000
321201021122021200001000
41023021223231103100
52310224412330423
6101023032542000
75554435641444
oct1131153552320
9251248250030
1080693089488
1131249166510
121377bb51900
1377bc8c493b
143c96c34824
152174278843
hex12c9aed4d0

80693089488 has 160 divisors (see below), whose sum is σ = 253948032000. Its totient is φ = 24329289600.

The previous prime is 80693089381. The next prime is 80693089489. The reversal of 80693089488 is 88498039608.

It is a super-2 number, since 2×806930894882 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80693089489) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 902983 + ... + 988313.

It is an arithmetic number, because the mean of its divisors is an integer number (1587175200).

Almost surely, 280693089488 is an apocalyptic number.

80693089488 is a gapful number since it is divisible by the number (88) 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 80693089488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126974016000).

80693089488 is an abundant number, since it is smaller than the sum of its proper divisors (173254942512).

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

80693089488 is a wasteful number, since it uses less digits than its factorization.

80693089488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85558 (or 85546 counting only the distinct ones).

The product of its (nonzero) digits is 23887872, while the sum is 63.

The spelling of 80693089488 in words is "eighty billion, six hundred ninety-three million, eighty-nine thousand, four hundred eighty-eight".

Divisors: 1 2 3 4 6 8 9 11 12 16 18 22 24 27 33 36 44 48 54 66 72 88 99 108 132 144 176 198 199 216 264 297 396 398 432 528 594 597 792 796 1188 1194 1584 1592 1791 2189 2376 2388 3184 3582 4378 4752 4776 5373 6567 7164 8756 9552 10746 13134 14328 17512 19701 21492 26268 28656 35024 39402 42984 52536 59103 78804 85331 85968 105072 118206 157608 170662 236412 255993 315216 341324 472824 511986 682648 767979 938641 945648 1023972 1365296 1535958 1877282 2047944 2303937 2815923 3071916 3754564 4095888 4607874 5631846 6143832 7509128 8447769 9215748 11263692 12287664 15018256 16895538 16980869 18431496 22527384 25343307 33791076 33961738 36862992 45054768 50686614 50942607 67582152 67923476 101373228 101885214 135164304 135846952 152827821 186789559 202746456 203770428 271693904 305655642 373579118 405492912 407540856 458483463 560368677 611311284 747158236 815081712 916966926 1120737354 1222622568 1494316472 1681106031 1833933852 2241474708 2445245136 2988632944 3362212062 3667867704 4482949416 5043318093 6724424124 7335735408 8965898832 10086636186 13448848248 20173272372 26897696496 40346544744 80693089488