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7068842536 = 237196643649
BaseRepresentation
bin1101001010101010…
…11111101000101000
3200020122021101222211
412211111133220220
5103434110430121
63125233454504
7340113112240
oct64525375050
920218241884
107068842536
112aa81a5028
121453411434
1388865a982
144b0b5ab20
152b58b6ce1
hex1a555fa28

7068842536 has 32 divisors (see below), whose sum is σ = 15944760000. Its totient is φ = 2870055936.

The previous prime is 7068842531. The next prime is 7068842537. The reversal of 7068842536 is 6352488607.

It is a super-2 number, since 2×70688425362 = 99937069597525822592, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7068842536.

It is not an unprimeable number, because it can be changed into a prime (7068842531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3320761 + ... + 3322888.

It is an arithmetic number, because the mean of its divisors is an integer number (498273750).

Almost surely, 27068842536 is an apocalyptic number.

7068842536 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

7068842536 is an abundant number, since it is smaller than the sum of its proper divisors (8875917464).

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

7068842536 is a wasteful number, since it uses less digits than its factorization.

7068842536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6643681 (or 6643677 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 49.

The square root of 7068842536 is about 84076.4089147485. The cubic root of 7068842536 is about 1919.1817382746.

The spelling of 7068842536 in words is "seven billion, sixty-eight million, eight hundred forty-two thousand, five hundred thirty-six".

Divisors: 1 2 4 7 8 14 19 28 38 56 76 133 152 266 532 1064 6643649 13287298 26574596 46505543 53149192 93011086 126229331 186022172 252458662 372044344 504917324 883605317 1009834648 1767210634 3534421268 7068842536