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11380690 = 2553109197
BaseRepresentation
bin101011011010…
…011111010010
3210102012101001
4223122133102
510403140230
61043532214
7165506566
oct53323722
923365331
1011380690
116473532
12398a06a
132486149
1417236a6
15eec0ca
hexada7d2

11380690 has 32 divisors (see below), whose sum is σ = 21170160. Its totient is φ = 4402944.

The previous prime is 11380679. The next prime is 11380717. The reversal of 11380690 is 9608311.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 10259209 + 1121481 = 3203^2 + 1059^2 .

It is a super-2 number, since 2×113806902 = 259040209752200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57672 + ... + 57868.

Almost surely, 211380690 is an apocalyptic number.

11380690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11380690 is a deficient number, since it is larger than the sum of its proper divisors (9789470).

11380690 is a wasteful number, since it uses less digits than its factorization.

11380690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 11380690 is about 3373.5278270677. The cubic root of 11380690 is about 224.9345653342.

The spelling of 11380690 in words is "eleven million, three hundred eighty thousand, six hundred ninety".

Divisors: 1 2 5 10 53 106 109 197 218 265 394 530 545 985 1090 1970 5777 10441 11554 20882 21473 28885 42946 52205 57770 104410 107365 214730 1138069 2276138 5690345 11380690