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11128620 = 2235185477
BaseRepresentation
bin101010011100…
…111100101100
3202221101121010
4222130330230
510322103440
61034305220
7163406646
oct52347454
922841533
1011128620
116311108
123888210
1323c84a9
141699896
15e9c580
hexa9cf2c

11128620 has 24 divisors (see below), whose sum is σ = 31160304. Its totient is φ = 2967616.

The previous prime is 11128583. The next prime is 11128627. The reversal of 11128620 is 2682111.

It is not an unprimeable number, because it can be changed into a prime (11128627) by changing a digit.

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, 92679 + ... + 92798.

It is an arithmetic number, because the mean of its divisors is an integer number (1298346).

Almost surely, 211128620 is an apocalyptic number.

11128620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11128620 is an abundant number, since it is smaller than the sum of its proper divisors (20031684).

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

11128620 is a wasteful number, since it uses less digits than its factorization.

11128620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185489 (or 185487 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 21.

The square root of 11128620 is about 3335.9586328370. The cubic root of 11128620 is about 223.2614654527.

The spelling of 11128620 in words is "eleven million, one hundred twenty-eight thousand, six hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 185477 370954 556431 741908 927385 1112862 1854770 2225724 2782155 3709540 5564310 11128620