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10066667481 = 321386039893
BaseRepresentation
bin10010110000000010…
…10010011111011001
3221222120012200201100
421120001102133121
5131104031324411
64342523342013
7504314155533
oct113001223731
927876180640
1010066667481
1142a640a302
121b4b381909
13c457601a0
146b6d58853
153ddb7b456
hex2580527d9

10066667481 has 12 divisors (see below), whose sum is σ = 15659260708. Its totient is φ = 6194872224.

The previous prime is 10066667473. The next prime is 10066667491. The reversal of 10066667481 is 18476666001.

It can be written as a sum of positive squares in 2 ways, for example, as 2210504256 + 7856163225 = 47016^2 + 88635^2 .

It is not a de Polignac number, because 10066667481 - 23 = 10066667473 is a prime.

It is a super-2 number, since 2×100666674812 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10066667431) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43019830 + ... + 43020063.

Almost surely, 210066667481 is an apocalyptic number.

It is an amenable number.

10066667481 is a deficient number, since it is larger than the sum of its proper divisors (5592593227).

10066667481 is a wasteful number, since it uses less digits than its factorization.

10066667481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86039912 (or 86039909 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The spelling of 10066667481 in words is "ten billion, sixty-six million, six hundred sixty-seven thousand, four hundred eighty-one".

Divisors: 1 3 9 13 39 117 86039893 258119679 774359037 1118518609 3355555827 10066667481