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103713857 = 137977989
BaseRepresentation
bin1100010111010…
…00110001000001
321020011012122222
412023220301001
5203022320412
614142540425
72366360522
oct613506101
9236135588
10103713857
11535a8835
122a897715
1318644060
14daba849
15918a072
hex62e8c41

103713857 has 4 divisors (see below), whose sum is σ = 111691860. Its totient is φ = 95735856.

The previous prime is 103713839. The next prime is 103713881. The reversal of 103713857 is 758317301.

It is a Cunningham number, because it is equal to 101842+1.

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 15335056 + 88378801 = 3916^2 + 9401^2 .

It is a cyclic number.

It is not a de Polignac number, because 103713857 - 26 = 103713793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103716857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3988982 + ... + 3989007.

It is an arithmetic number, because the mean of its divisors is an integer number (27922965).

Almost surely, 2103713857 is an apocalyptic number.

It is an amenable number.

103713857 is a deficient number, since it is larger than the sum of its proper divisors (7978003).

103713857 is an equidigital number, since it uses as much as digits as its factorization.

103713857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7978002.

The product of its (nonzero) digits is 17640, while the sum is 35.

The square root of 103713857 is about 10184.0000490966. Note that the first 4 decimals coincide. The cubic root of 103713857 is about 469.8352478232.

The spelling of 103713857 in words is "one hundred three million, seven hundred thirteen thousand, eight hundred fifty-seven".

Divisors: 1 13 7977989 103713857