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11670220 = 225583511
BaseRepresentation
bin101100100001…
…001011001100
3210221220112101
4230201023030
510441421340
61054044444
7201123652
oct54411314
923856471
1011670220
116651011
123aa9724
132557b73
14179add2
151057c9a
hexb212cc

11670220 has 12 divisors (see below), whose sum is σ = 24507504. Its totient is φ = 4668080.

The previous prime is 11670193. The next prime is 11670221. The reversal of 11670220 is 2207611.

It is not an unprimeable number, because it can be changed into a prime (11670221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 291736 + ... + 291775.

It is an arithmetic number, because the mean of its divisors is an integer number (2042292).

Almost surely, 211670220 is an apocalyptic number.

11670220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11670220 is an abundant number, since it is smaller than the sum of its proper divisors (12837284).

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

11670220 is a wasteful number, since it uses less digits than its factorization.

11670220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 583520 (or 583518 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 11670220 is about 3416.1703704587. The cubic root of 11670220 is about 226.8260941062.

Adding to 11670220 its reverse (2207611), we get a palindrome (13877831).

The spelling of 11670220 in words is "eleven million, six hundred seventy thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 583511 1167022 2334044 2917555 5835110 11670220