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1320030111 = 31989260207
BaseRepresentation
bin100111010101110…
…0000111110011111
310101222212110220010
41032223200332133
510200411430421
6334552454303
744466033201
oct11653407637
93358773803
101320030111
11618139184
1230a0aa393
1318062c00a
14c7456771
157ad4a076
hex4eae0f9f

1320030111 has 16 divisors (see below), whose sum is σ = 1873497600. Its totient is φ = 824332608.

The previous prime is 1320030079. The next prime is 1320030113. The reversal of 1320030111 is 1110300231.

It is not a de Polignac number, because 1320030111 - 25 = 1320030079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320030113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 125031 + ... + 135176.

It is an arithmetic number, because the mean of its divisors is an integer number (117093600).

Almost surely, 21320030111 is an apocalyptic number.

1320030111 is a deficient number, since it is larger than the sum of its proper divisors (553467489).

1320030111 is a wasteful number, since it uses less digits than its factorization.

1320030111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260318.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 1320030111 is about 36332.2186358059. The cubic root of 1320030111 is about 1096.9696514842.

Adding to 1320030111 its reverse (1110300231), we get a palindrome (2430330342).

The spelling of 1320030111 in words is "one billion, three hundred twenty million, thirty thousand, one hundred eleven".

Divisors: 1 3 19 57 89 267 1691 5073 260207 780621 4943933 14831799 23158423 69475269 440010037 1320030111