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86968680 = 23352967373
BaseRepresentation
bin1010010111100…
…00100101101000
320001122110121020
411023300211220
5134230444210
612344012440
72104136001
oct513604550
9201573536
1086968680
1145100947
1225161120
1315030276
14b79c1a8
15797d770
hex52f0968

86968680 has 128 divisors (see below), whose sum is σ = 274665600. Its totient is φ = 21998592.

The previous prime is 86968669. The next prime is 86968697. The reversal of 86968680 is 8686968.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 232974 + ... + 233346.

It is an arithmetic number, because the mean of its divisors is an integer number (2145825).

Almost surely, 286968680 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 86968680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (137332800).

86968680 is an abundant number, since it is smaller than the sum of its proper divisors (187696920).

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

86968680 is a wasteful number, since it uses less digits than its factorization.

86968680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483 (or 479 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 51.

The square root of 86968680 is about 9325.6999737285. The cubic root of 86968680 is about 443.0515832159.

The spelling of 86968680 in words is "eighty-six million, nine hundred sixty-eight thousand, six hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 29 30 40 58 60 67 87 116 120 134 145 174 201 232 268 290 335 348 373 402 435 536 580 670 696 746 804 870 1005 1119 1160 1340 1492 1608 1740 1865 1943 2010 2238 2680 2984 3480 3730 3886 4020 4476 5595 5829 7460 7772 8040 8952 9715 10817 11190 11658 14920 15544 19430 21634 22380 23316 24991 29145 32451 38860 43268 44760 46632 49982 54085 58290 64902 74973 77720 86536 99964 108170 116580 124955 129804 149946 162255 199928 216340 233160 249910 259608 299892 324510 374865 432680 499820 599784 649020 724739 749730 999640 1298040 1449478 1499460 2174217 2898956 2998920 3623695 4348434 5797912 7247390 8696868 10871085 14494780 17393736 21742170 28989560 43484340 86968680