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11279020 = 2252712081
BaseRepresentation
bin101011000001…
…101010101100
3210020000220111
4223001222230
510341412040
61041425404
7164604304
oct53015254
923200814
1011279020
116404105
12393b264
13244ba9c
1416d8604
15ecbdea
hexac1aac

11279020 has 24 divisors (see below), whose sum is σ = 23784768. Its totient is φ = 4492800.

The previous prime is 11279017. The next prime is 11279033. The reversal of 11279020 is 2097211.

It is a junction number, because it is equal to n+sod(n) for n = 11278982 and 11279000.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4380 + ... + 6460.

It is an arithmetic number, because the mean of its divisors is an integer number (991032).

Almost surely, 211279020 is an apocalyptic number.

11279020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11279020 is an abundant number, since it is smaller than the sum of its proper divisors (12505748).

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

11279020 is a wasteful number, since it uses less digits than its factorization.

11279020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2361 (or 2359 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 22.

The square root of 11279020 is about 3358.4252262035. The cubic root of 11279020 is about 224.2627391081.

The spelling of 11279020 in words is "eleven million, two hundred seventy-nine thousand, twenty".

Divisors: 1 2 4 5 10 20 271 542 1084 1355 2081 2710 4162 5420 8324 10405 20810 41620 563951 1127902 2255804 2819755 5639510 11279020