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38648686682 = 279742535701
BaseRepresentation
bin100011111111101001…
…000010100001011010
310200202111022201010002
4203333221002201122
51113123030433212
625431023253002
72535515262554
oct437751024132
9120674281102
1038648686682
11154331a3381
1275a744a162
13384c11c498
141c28d304d4
15101305cac2
hex8ffa4285a

38648686682 has 16 divisors (see below), whose sum is σ = 58069601352. Its totient is φ = 19292174400.

The previous prime is 38648686679. The next prime is 38648686697. The reversal of 38648686682 is 28668684683.

38648686682 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 31729940641 + 6918746041 = 178129^2 + 83179^2 .

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, 6776432 + ... + 6782132.

Almost surely, 238648686682 is an apocalyptic number.

38648686682 is a deficient number, since it is larger than the sum of its proper divisors (19420914670).

38648686682 is a wasteful number, since it uses less digits than its factorization.

38648686682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10753.

The product of its digits is 127401984, while the sum is 65.

The spelling of 38648686682 in words is "thirty-eight billion, six hundred forty-eight million, six hundred eighty-six thousand, six hundred eighty-two".

Divisors: 1 2 797 1594 4253 5701 8506 11402 3389641 4543697 6779282 9087394 24246353 48492706 19324343341 38648686682