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103986479 = 671552037
BaseRepresentation
bin1100011001010…
…11010100101111
321020200001122002
412030223110233
5203110031404
614152442515
72401604402
oct614532457
9236601562
10103986479
1153774643
122a9a943b
131870b17c
14db4bd39
1591e0c1e
hex632b52f

103986479 has 4 divisors (see below), whose sum is σ = 105538584. Its totient is φ = 102434376.

The previous prime is 103986409. The next prime is 103986481. The reversal of 103986479 is 974689301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 974689301 = 2668736523.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-103986479 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 (103986409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 775952 + ... + 776085.

It is an arithmetic number, because the mean of its divisors is an integer number (26384646).

Almost surely, 2103986479 is an apocalyptic number.

103986479 is a deficient number, since it is larger than the sum of its proper divisors (1552105).

103986479 is an equidigital number, since it uses as much as digits as its factorization.

103986479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1552104.

The product of its (nonzero) digits is 326592, while the sum is 47.

The square root of 103986479 is about 10197.3760840718. The cubic root of 103986479 is about 470.2465569197.

The spelling of 103986479 in words is "one hundred three million, nine hundred eighty-six thousand, four hundred seventy-nine".

Divisors: 1 67 1552037 103986479