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6981020706 = 231129615731
BaseRepresentation
bin1101000000001100…
…11110110000100010
3200000112000121002110
412200012132300202
5103244120130311
63112415300150
7334665461022
oct64006366042
920015017073
106981020706
112a62671200
121429b1a656
138733bc2aa
144a3219a82
152acd1a8a6
hex1a019ec22

6981020706 has 24 divisors (see below), whose sum is σ = 15346708272. Its totient is φ = 2115460600.

The previous prime is 6981020701. The next prime is 6981020723. The reversal of 6981020706 is 6070201896.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (6981020701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4807140 + ... + 4808591.

It is an arithmetic number, because the mean of its divisors is an integer number (639446178).

Almost surely, 26981020706 is an apocalyptic number.

6981020706 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

6981020706 is an abundant number, since it is smaller than the sum of its proper divisors (8365687566).

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

6981020706 is a wasteful number, since it uses less digits than its factorization.

6981020706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9615758 (or 9615747 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 6981020706 is about 83552.5026914215. The cubic root of 6981020706 is about 1911.2007568011.

The spelling of 6981020706 in words is "six billion, nine hundred eighty-one million, twenty thousand, seven hundred six".

Divisors: 1 2 3 6 11 22 33 66 121 242 363 726 9615731 19231462 28847193 57694386 105773041 211546082 317319123 634638246 1163503451 2327006902 3490510353 6981020706