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86685460942080 = 283571113313757
BaseRepresentation
bin10011101101011100001000…
…000110110100110100000000
3102100221001022211002022020110
4103231130020012310310000
542330223311000121310
6504210430114311320
724154550350400220
oct2355341006646400
9370831284068213
1086685460942080
11256911088a8840
129880281588540
13394a5334711a0
141759854b70080
15a04d4b364d20
hex4ed7081b4d00

86685460942080 has 2304 divisors, whose sum is σ = 384614511869952. Its totient is φ = 16069371494400.

The previous prime is 86685460942037. The next prime is 86685460942141. The reversal of 86685460942080 is 8024906458668.

It is a super-2 number, since 2×866854609420802 (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 114511837062 + ... + 114511837818.

It is an arithmetic number, because the mean of its divisors is an integer number (166933381888).

Almost surely, 286685460942080 is an apocalyptic number.

86685460942080 is a gapful number since it is divisible by the number (80) 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 86685460942080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (192307255934976).

86685460942080 is an abundant number, since it is smaller than the sum of its proper divisors (297929050927872).

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

86685460942080 is a wasteful number, since it uses less digits than its factorization.

86685460942080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 905 (or 829 counting only the distinct ones).

The product of its (nonzero) digits is 159252480, while the sum is 66.

The spelling of 86685460942080 in words is "eighty-six trillion, six hundred eighty-five billion, four hundred sixty million, nine hundred forty-two thousand, eighty".