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103933805 = 520786761
BaseRepresentation
bin1100011000111…
…10011101101101
321020120101101012
412030132131231
5203101340210
614151355005
72401265003
oct614363555
9236511335
10103933805
1153739008
122a982a65
13186c01c1
14db36a73
1591d0305
hex631e76d

103933805 has 4 divisors (see below), whose sum is σ = 124720572. Its totient is φ = 83147040.

The previous prime is 103933783. The next prime is 103933807. The reversal of 103933805 is 508339301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 508339301 = 2112409191.

It can be written as a sum of positive squares in 2 ways, for example, as 47293129 + 56640676 = 6877^2 + 7526^2 .

It is not a de Polignac number, because 103933805 - 220 = 102885229 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 (103933807) 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, 10393376 + ... + 10393385.

It is an arithmetic number, because the mean of its divisors is an integer number (31180143).

Almost surely, 2103933805 is an apocalyptic number.

It is an amenable number.

103933805 is a deficient number, since it is larger than the sum of its proper divisors (20786767).

103933805 is an equidigital number, since it uses as much as digits as its factorization.

103933805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20786766.

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 103933805 is about 10194.7930337011. The cubic root of 103933805 is about 470.1671429071.

The spelling of 103933805 in words is "one hundred three million, nine hundred thirty-three thousand, eight hundred five".

Divisors: 1 5 20786761 103933805