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11712051 = 3213100103
BaseRepresentation
bin101100101011…
…011000110011
3211001000220200
4230223120303
510444241201
61055010243
7201356631
oct54533063
924030820
1011712051
11667a48a
123b09983
132570c10
1417ac351
151065386
hexb2b633

11712051 has 12 divisors (see below), whose sum is σ = 18218928. Its totient is φ = 7207344.

The previous prime is 11712049. The next prime is 11712053. The reversal of 11712051 is 15021711.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (11712049) and next prime (11712053).

It is not a de Polignac number, because 11712051 - 21 = 11712049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11712053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49935 + ... + 50168.

It is an arithmetic number, because the mean of its divisors is an integer number (1518244).

Almost surely, 211712051 is an apocalyptic number.

11712051 is a deficient number, since it is larger than the sum of its proper divisors (6506877).

11712051 is a wasteful number, since it uses less digits than its factorization.

11712051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100122 (or 100119 counting only the distinct ones).

The product of its (nonzero) digits is 70, while the sum is 18.

The square root of 11712051 is about 3422.2873929581. The cubic root of 11712051 is about 227.0967844645.

Adding to 11712051 its reverse (15021711), we get a palindrome (26733762).

The spelling of 11712051 in words is "eleven million, seven hundred twelve thousand, fifty-one".

Divisors: 1 3 9 13 39 117 100103 300309 900927 1301339 3904017 11712051