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7000068637 = 7339549889
BaseRepresentation
bin1101000010011110…
…01001001000011101
3200001211212022221101
412201033021020131
5103314004144022
63114335433101
7335316413242
oct64117111035
920054768841
107000068637
112a723a11a1
121434385791
1387732b263
144a59775c9
152ae82e627
hex1a13c921d

7000068637 has 4 divisors (see below), whose sum is σ = 7009619260. Its totient is φ = 6990518016.

The previous prime is 7000068619. The next prime is 7000068641. The reversal of 7000068637 is 7368600007.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7368600007 = 19387821053.

It can be written as a sum of positive squares in 2 ways, for example, as 3387938436 + 3612130201 = 58206^2 + 60101^2 .

It is a cyclic number.

It is not a de Polignac number, because 7000068637 - 223 = 6991680029 is a prime.

It is a super-2 number, since 2×70000686372 = 98001921845422075538, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7000068596 and 7000068605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7000068667) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4774212 + ... + 4775677.

It is an arithmetic number, because the mean of its divisors is an integer number (1752404815).

Almost surely, 27000068637 is an apocalyptic number.

It is an amenable number.

7000068637 is a deficient number, since it is larger than the sum of its proper divisors (9550623).

7000068637 is an equidigital number, since it uses as much as digits as its factorization.

7000068637 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9550622.

The product of its (nonzero) digits is 42336, while the sum is 37.

The square root of 7000068637 is about 83666.4128369324. The cubic root of 7000068637 is about 1912.9374350309.

The spelling of 7000068637 in words is "seven billion, sixty-eight thousand, six hundred thirty-seven".

Divisors: 1 733 9549889 7000068637