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10081939 = 710491373
BaseRepresentation
bin100110011101…
…011010010011
3200222012211011
4212131122103
510040110224
61000031351
7151460260
oct46353223
920865734
1010081939
11576678a
123462557
13211cc5a
1414a6267
15d42394
hex99d693

10081939 has 8 divisors (see below), whose sum is σ = 11541600. Its totient is φ = 8627136.

The previous prime is 10081933. The next prime is 10081943. The reversal of 10081939 is 93918001.

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

It is not a de Polignac number, because 10081939 - 217 = 9950867 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10081939.

It is not an unprimeable number, because it can be changed into a prime (10081933) 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, 6657 + ... + 8029.

It is an arithmetic number, because the mean of its divisors is an integer number (1442700).

Almost surely, 210081939 is an apocalyptic number.

10081939 is a deficient number, since it is larger than the sum of its proper divisors (1459661).

10081939 is a wasteful number, since it uses less digits than its factorization.

10081939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2429.

The product of its (nonzero) digits is 1944, while the sum is 31.

The square root of 10081939 is about 3175.2069223910. The cubic root of 10081939 is about 216.0303098184.

The spelling of 10081939 in words is "ten million, eighty-one thousand, nine hundred thirty-nine".

Divisors: 1 7 1049 1373 7343 9611 1440277 10081939