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11986340 = 2251931543
BaseRepresentation
bin101101101110…
…010110100100
3211112222011112
4231232112210
511032030330
61104524152
7203611412
oct55562644
924488145
1011986340
116847573
124020658
132638a12
1418402b2
1510bb795
hexb6e5a4

11986340 has 24 divisors (see below), whose sum is σ = 26496960. Its totient is φ = 4542048.

The previous prime is 11986339. The next prime is 11986357. The reversal of 11986340 is 4368911.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 11986297 and 11986306.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 15392 + ... + 16151.

It is an arithmetic number, because the mean of its divisors is an integer number (1104040).

Almost surely, 211986340 is an apocalyptic number.

11986340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11986340 is an abundant number, since it is smaller than the sum of its proper divisors (14510620).

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

11986340 is a wasteful number, since it uses less digits than its factorization.

11986340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31571 (or 31569 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 11986340 is about 3462.1294025498. The cubic root of 11986340 is about 228.8559444351.

The spelling of 11986340 in words is "eleven million, nine hundred eighty-six thousand, three hundred forty".

Divisors: 1 2 4 5 10 19 20 38 76 95 190 380 31543 63086 126172 157715 315430 599317 630860 1198634 2397268 2996585 5993170 11986340