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1320000103 = 4013328931
BaseRepresentation
bin100111010101101…
…1001101001100111
310101222210221201201
41032223121221213
510200410000403
6334552103331
744465546542
oct11653315147
93358727651
101320000103
11618118684
1230a094b47
1318061b466
14c7449859
157ad4121d
hex4ead9a67

1320000103 has 4 divisors (see below), whose sum is σ = 1320333048. Its totient is φ = 1319667160.

The previous prime is 1320000083. The next prime is 1320000113. The reversal of 1320000103 is 3010000231.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1320000103 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1320000103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320000113) 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, 160453 + ... + 168478.

It is an arithmetic number, because the mean of its divisors is an integer number (330083262).

Almost surely, 21320000103 is an apocalyptic number.

1320000103 is a deficient number, since it is larger than the sum of its proper divisors (332945).

1320000103 is an equidigital number, since it uses as much as digits as its factorization.

1320000103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332944.

The product of its (nonzero) digits is 18, while the sum is 10.

The square root of 1320000103 is about 36331.8056666607. The cubic root of 1320000103 is about 1096.9613390186.

Adding to 1320000103 its reverse (3010000231), we get a palindrome (4330000334).

The spelling of 1320000103 in words is "one billion, three hundred twenty million, one hundred three", and thus it is an aban number.

Divisors: 1 4013 328931 1320000103