Search a number
-
+
12127480 = 235303187
BaseRepresentation
bin101110010000…
…110011111000
3211211010202221
4232100303320
511101034410
61111533424
7205040041
oct56206370
924733687
1012127480
116933612
12408a274
132688031
1418798c8
1510e84da
hexb90cf8

12127480 has 16 divisors (see below), whose sum is σ = 27286920. Its totient is φ = 4850976.

The previous prime is 12127459. The next prime is 12127483. The reversal of 12127480 is 8472121.

It is a happy number.

12127480 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×121274803 (a number of 22 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12127483) 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, 151554 + ... + 151633.

Almost surely, 212127480 is an apocalyptic number.

12127480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12127480 is an abundant number, since it is smaller than the sum of its proper divisors (15159440).

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

12127480 is a wasteful number, since it uses less digits than its factorization.

12127480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303198 (or 303194 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 25.

The square root of 12127480 is about 3482.4531583354. The cubic root of 12127480 is about 229.7507065779.

The spelling of 12127480 in words is "twelve million, one hundred twenty-seven thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 303187 606374 1212748 1515935 2425496 3031870 6063740 12127480