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8681413340 = 2251732509079
BaseRepresentation
bin10000001010111001…
…11101101011011100
3211102000121111021102
420011130331223130
5120234420211330
63553240452232
7425063536655
oct100534755334
924360544242
108681413340
113755482376
12182347a078
13a84775492
145c4da452c
1535c24a945
hex20573dadc

8681413340 has 24 divisors (see below), whose sum is σ = 18336356640. Its totient is φ = 3452491328.

The previous prime is 8681413339. The next prime is 8681413357. The reversal of 8681413340 is 433141868.

It is a junction number, because it is equal to n+sod(n) for n = 8681413294 and 8681413303.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1251080 + ... + 1257999.

It is an arithmetic number, because the mean of its divisors is an integer number (764014860).

Almost surely, 28681413340 is an apocalyptic number.

It is an amenable number.

8681413340 is an abundant number, since it is smaller than the sum of its proper divisors (9654943300).

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

8681413340 is a wasteful number, since it uses less digits than its factorization.

8681413340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2509261 (or 2509259 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 38.

The square root of 8681413340 is about 93174.1023031615. The cubic root of 8681413340 is about 2055.2444216864.

The spelling of 8681413340 in words is "eight billion, six hundred eighty-one million, four hundred thirteen thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 173 346 692 865 1730 3460 2509079 5018158 10036316 12545395 25090790 50181580 434070667 868141334 1736282668 2170353335 4340706670 8681413340