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1993607 = 711171523
BaseRepresentation
bin111100110101110000111
310202021201022
413212232013
51002243412
6110421355
722642160
oct7465607
93667638
101993607
111141910
1280185b
1354a565
1439c767
15295a72
hex1e6b87

1993607 has 16 divisors (see below), whose sum is σ = 2633472. Its totient is φ = 1461120.

The previous prime is 1993603. The next prime is 1993627. The reversal of 1993607 is 7063991.

It is a cyclic number.

It is not a de Polignac number, because 1993607 - 22 = 1993603 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1993601) 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 15 ways as a sum of consecutive naturals, for example, 548 + ... + 2070.

It is an arithmetic number, because the mean of its divisors is an integer number (164592).

21993607 is an apocalyptic number.

1993607 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

1993607 is a deficient number, since it is larger than the sum of its proper divisors (639865).

1993607 is a wasteful number, since it uses less digits than its factorization.

1993607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1558.

The product of its (nonzero) digits is 10206, while the sum is 35.

The square root of 1993607 is about 1411.9514864187. The cubic root of 1993607 is about 125.8577171095.

The spelling of 1993607 in words is "one million, nine hundred ninety-three thousand, six hundred seven".

Divisors: 1 7 11 17 77 119 187 1309 1523 10661 16753 25891 117271 181237 284801 1993607