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11293812 = 2232313717
BaseRepresentation
bin101011000101…
…010001110100
3210020210012100
4223011101310
510342400222
61042022100
7164665365
oct53052164
923223170
1011293812
116414232
123947930
13245573a
1416ddb6c
15ed14ac
hexac5474

11293812 has 18 divisors (see below), whose sum is σ = 28548338. Its totient is φ = 3764592.

The previous prime is 11293801. The next prime is 11293829. The reversal of 11293812 is 21839211.

It can be written as a sum of positive squares in only one way, i.e., 10265616 + 1028196 = 3204^2 + 1014^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 156823 + ... + 156894.

Almost surely, 211293812 is an apocalyptic number.

11293812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11293812 is an abundant number, since it is smaller than the sum of its proper divisors (17254526).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11293812 is a wasteful number, since it uses less digits than its factorization.

11293812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313727 (or 313722 counting only the distinct ones).

The product of its digits is 864, while the sum is 27.

The square root of 11293812 is about 3360.6267272638. The cubic root of 11293812 is about 224.3607335948.

The spelling of 11293812 in words is "eleven million, two hundred ninety-three thousand, eight hundred twelve".

Divisors: 1 2 3 4 6 9 12 18 36 313717 627434 941151 1254868 1882302 2823453 3764604 5646906 11293812