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10068706649 = 291636121221
BaseRepresentation
bin10010110000010010…
…00100010101011001
3221222201001021221002
421120021010111121
5131110042103044
64343035154345
7504340410611
oct113011042531
927881037832
1010068706649
1142a7582371
121b4bba59b5
13c45cc53b1
146b7329a41
153dde3074e
hex258244559

10068706649 has 8 divisors (see below), whose sum is σ = 10417030920. Its totient is φ = 9720457600.

The previous prime is 10068706643. The next prime is 10068706691. The reversal of 10068706649 is 94660786001.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3599400025 + 6469306624 = 59995^2 + 80432^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10068706649 - 232 = 5773739353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10068706643) 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 7 ways as a sum of consecutive naturals, for example, 463859 + ... + 485079.

It is an arithmetic number, because the mean of its divisors is an integer number (1302128865).

Almost surely, 210068706649 is an apocalyptic number.

It is an amenable number.

10068706649 is a deficient number, since it is larger than the sum of its proper divisors (348324271).

10068706649 is a wasteful number, since it uses less digits than its factorization.

10068706649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37611.

The product of its (nonzero) digits is 435456, while the sum is 47.

The spelling of 10068706649 in words is "ten billion, sixty-eight million, seven hundred six thousand, six hundred forty-nine".

Divisors: 1 29 16361 21221 474469 615409 347196781 10068706649