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103130111 = 743134183
BaseRepresentation
bin1100010010110…
…10001111111111
321012001112220202
412021122033333
5202400130421
614122234115
72361406610
oct611321777
9235045822
10103130111
115323a1a7
122a65593b
131849b446
14d9a7c07
1590c210b
hex625a3ff

103130111 has 8 divisors (see below), whose sum is σ = 118139904. Its totient is φ = 88189560.

The previous prime is 103130107. The next prime is 103130117. The reversal of 103130111 is 111031301.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 103130111 - 22 = 103130107 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 103130092 and 103130101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103130117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14075 + ... + 20108.

It is an arithmetic number, because the mean of its divisors is an integer number (14767488).

Almost surely, 2103130111 is an apocalyptic number.

103130111 is a deficient number, since it is larger than the sum of its proper divisors (15009793).

103130111 is an equidigital number, since it uses as much as digits as its factorization.

103130111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34621.

The product of its (nonzero) digits is 9, while the sum is 11.

The square root of 103130111 is about 10155.2996509212. The cubic root of 103130111 is about 468.9521108641.

Adding to 103130111 its reverse (111031301), we get a palindrome (214161412).

It can be divided in two parts, 1031301 and 11, that multiplied together give a palindrome (11344311).

The spelling of 103130111 in words is "one hundred three million, one hundred thirty thousand, one hundred eleven".

Divisors: 1 7 431 3017 34183 239281 14732873 103130111