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12052090 = 252814289
BaseRepresentation
bin101101111110…
…011001111010
3211200022100201
4231332121322
511041131330
61110152414
7204304201
oct55763172
924608321
1012052090
116891a06
12405270a
13265c91b
14185a238
1510d0eca
hexb7e67a

12052090 has 16 divisors (see below), whose sum is σ = 21776040. Its totient is φ = 4802560.

The previous prime is 12052043. The next prime is 12052093. The reversal of 12052090 is 9025021.

It can be written as a sum of positive squares in 4 ways, for example, as 11923209 + 128881 = 3453^2 + 359^2 .

It is not an unprimeable number, because it can be changed into a prime (12052093) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 666 + ... + 4954.

Almost surely, 212052090 is an apocalyptic number.

12052090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12052090 is a deficient number, since it is larger than the sum of its proper divisors (9723950).

12052090 is a wasteful number, since it uses less digits than its factorization.

12052090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4577.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 12052090 is about 3471.6120174927. The cubic root of 12052090 is about 229.2736379202.

The spelling of 12052090 in words is "twelve million, fifty-two thousand, ninety".

Divisors: 1 2 5 10 281 562 1405 2810 4289 8578 21445 42890 1205209 2410418 6026045 12052090