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103933405 = 520786681
BaseRepresentation
bin1100011000111…
…10010111011101
321020120100211101
412030132113131
5203101332110
614151353101
72401263562
oct614362735
9236510741
10103933405
1153738784
122a982791
13186bcc74
14db36869
1591d013a
hex631e5dd

103933405 has 4 divisors (see below), whose sum is σ = 124720092. Its totient is φ = 83146720.

The previous prime is 103933391. The next prime is 103933411. The reversal of 103933405 is 504339301.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 21141604 + 82791801 = 4598^2 + 9099^2 .

It is a de Polignac number, because none of the positive numbers 2k-103933405 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10393336 + ... + 10393345.

It is an arithmetic number, because the mean of its divisors is an integer number (31180023).

Almost surely, 2103933405 is an apocalyptic number.

It is an amenable number.

103933405 is a deficient number, since it is larger than the sum of its proper divisors (20786687).

103933405 is an equidigital number, since it uses as much as digits as its factorization.

103933405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20786686.

The product of its (nonzero) digits is 4860, while the sum is 28.

The square root of 103933405 is about 10194.7734158244. The cubic root of 103933405 is about 470.1665397440.

The spelling of 103933405 in words is "one hundred three million, nine hundred thirty-three thousand, four hundred five".

Divisors: 1 5 20786681 103933405