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10081643 = 111370501
BaseRepresentation
bin100110011101…
…010101101011
3200222012102012
4212131111223
510040103033
61000030135
7151456355
oct46352553
920865365
1010081643
115766540
12346234b
13211ca90
1414a60d5
15d42248
hex99d56b

10081643 has 8 divisors (see below), whose sum is σ = 11844336. Its totient is φ = 8460000.

The previous prime is 10081639. The next prime is 10081657. The reversal of 10081643 is 34618001.

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 10081643 - 22 = 10081639 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10081633) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35108 + ... + 35393.

It is an arithmetic number, because the mean of its divisors is an integer number (1480542).

Almost surely, 210081643 is an apocalyptic number.

10081643 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

10081643 is a deficient number, since it is larger than the sum of its proper divisors (1762693).

10081643 is a wasteful number, since it uses less digits than its factorization.

10081643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70525.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 10081643 is about 3175.1603109135. The cubic root of 10081643 is about 216.0281956220.

Adding to 10081643 its reverse (34618001), we get a palindrome (44699644).

The spelling of 10081643 in words is "ten million, eighty-one thousand, six hundred forty-three".

Divisors: 1 11 13 143 70501 775511 916513 10081643