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103315693 = 137947361
BaseRepresentation
bin1100010100001…
…11100011101101
321012101222111011
412022013203231
5202422100233
614130225221
72363111635
oct612074355
9235358434
10103315693
1153356678
122a725211
1318534a60
14da156c5
15910c0cd
hex62878ed

103315693 has 4 divisors (see below), whose sum is σ = 111263068. Its totient is φ = 95368320.

The previous prime is 103315691. The next prime is 103315717. The reversal of 103315693 is 396513301.

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 36942084 + 66373609 = 6078^2 + 8147^2 .

It is a cyclic number.

It is not a de Polignac number, because 103315693 - 21 = 103315691 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 (103315691) 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, 3973668 + ... + 3973693.

It is an arithmetic number, because the mean of its divisors is an integer number (27815767).

Almost surely, 2103315693 is an apocalyptic number.

103315693 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

103315693 is a deficient number, since it is larger than the sum of its proper divisors (7947375).

103315693 is an equidigital number, since it uses as much as digits as its factorization.

103315693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7947374.

The product of its (nonzero) digits is 7290, while the sum is 31.

The square root of 103315693 is about 10164.4327436409. The cubic root of 103315693 is about 469.2332344505.

Adding to 103315693 its reverse (396513301), we get a palindrome (499828994).

The spelling of 103315693 in words is "one hundred three million, three hundred fifteen thousand, six hundred ninety-three".

Divisors: 1 13 7947361 103315693