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11988508 = 227428161
BaseRepresentation
bin101101101110…
…111000011100
3211120002010211
4231232320130
511032113013
61104542204
7203620630
oct55567034
924502124
1011988508
116849164
124021964
1326399bc
141840dc0
1510bc23d
hexb6ee1c

11988508 has 12 divisors (see below), whose sum is σ = 23977072. Its totient is φ = 5137920.

The previous prime is 11988469. The next prime is 11988517. The reversal of 11988508 is 80588911.

11988508 is an admirable number.

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, 214053 + ... + 214108.

Almost surely, 211988508 is an apocalyptic number.

It is an amenable number.

11988508 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.

11988508 is a wasteful number, since it uses less digits than its factorization.

11988508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428172 (or 428170 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 40.

The square root of 11988508 is about 3462.4424904971. The cubic root of 11988508 is about 228.8697415235.

The spelling of 11988508 in words is "eleven million, nine hundred eighty-eight thousand, five hundred eight".

Divisors: 1 2 4 7 14 28 428161 856322 1712644 2997127 5994254 11988508