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11780068 = 22972313
BaseRepresentation
bin101100111011…
…111111100100
3211011111012211
4230323333210
511003430233
61100253204
7202062136
oct54737744
924144184
1011780068
1167165a3
123b41204
132595b71
1417c9056
15107a5cd
hexb3bfe4

11780068 has 18 divisors (see below), whose sum is σ = 20896386. Its totient is φ = 5810688.

The previous prime is 11780063. The next prime is 11780077. The reversal of 11780068 is 86008711.

It can be written as a sum of positive squares in 3 ways, for example, as 1444 + 11778624 = 38^2 + 3432^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11780063) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 37480 + ... + 37792.

Almost surely, 211780068 is an apocalyptic number.

It is an amenable number.

11780068 is a deficient number, since it is larger than the sum of its proper divisors (9116318).

11780068 is an equidigital number, since it uses as much as digits as its factorization.

11780068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511 (or 412 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 31.

The square root of 11780068 is about 3432.2103665131. The cubic root of 11780068 is about 227.5355529510.

Adding to 11780068 its reverse (86008711), we get a palindrome (97788779).

It can be divided in two parts, 117 and 80068, that multiplied together give a triangular number (9367956 = T4328).

The spelling of 11780068 in words is "eleven million, seven hundred eighty thousand, sixty-eight".

Divisors: 1 2 4 97 194 313 388 626 1252 9409 18818 30361 37636 60722 121444 2945017 5890034 11780068