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11887245 = 325299109
BaseRepresentation
bin101101010110…
…001010001101
3211100221020100
4231112022031
511020342440
61102441313
7203016456
oct55261215
924327210
1011887245
11678a077
123b93239
132602896
14181612d
15109c230
hexb5628d

11887245 has 24 divisors (see below), whose sum is σ = 21317400. Its totient is φ = 6120576.

The previous prime is 11887243. The next prime is 11887277. The reversal of 11887245 is 54278811.

11887245 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 149769 + 11737476 = 387^2 + 3426^2 .

It is not a de Polignac number, because 11887245 - 21 = 11887243 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11887243) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3250 + ... + 5859.

It is an arithmetic number, because the mean of its divisors is an integer number (888225).

Almost surely, 211887245 is an apocalyptic number.

11887245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11887245 is a deficient number, since it is larger than the sum of its proper divisors (9430155).

11887245 is a wasteful number, since it uses less digits than its factorization.

11887245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9149 (or 9146 counting only the distinct ones).

The product of its digits is 17920, while the sum is 36.

The square root of 11887245 is about 3447.7884215827. The cubic root of 11887245 is about 228.2235227156.

The spelling of 11887245 in words is "eleven million, eight hundred eighty-seven thousand, two hundred forty-five".

Divisors: 1 3 5 9 15 29 45 87 145 261 435 1305 9109 27327 45545 81981 136635 264161 409905 792483 1320805 2377449 3962415 11887245