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11800684 = 227421453
BaseRepresentation
bin101101000001…
…000001101100
3211012112111101
4231001001230
511010110214
61100532444
7202206220
oct55010154
924175441
1011800684
116730035
123b51124
1325a236c
1417d2780
151081774
hexb4106c

11800684 has 12 divisors (see below), whose sum is σ = 23601424. Its totient is φ = 5057424.

The previous prime is 11800673. The next prime is 11800717. The reversal of 11800684 is 48600811.

11800684 is an admirable number.

It is a super-2 number, since 2×118006842 = 278512285735712, which contains 22 as substring.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (28), and also a Moran number because the ratio is a prime number: 421453 = 11800684 / (1 + 1 + 8 + 0 + 0 + 6 + 8 + 4).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 210699 + ... + 210754.

Almost surely, 211800684 is an apocalyptic number.

11800684 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

11800684 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

11800684 is a wasteful number, since it uses less digits than its factorization.

11800684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421464 (or 421462 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 28.

The square root of 11800684 is about 3435.2123660700. The cubic root of 11800684 is about 227.6682103391.

The spelling of 11800684 in words is "eleven million, eight hundred thousand, six hundred eighty-four".

Divisors: 1 2 4 7 14 28 421453 842906 1685812 2950171 5900342 11800684