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12774380 = 225638719
BaseRepresentation
bin110000101110…
…101111101100
3220001000011012
4300232233230
511232240010
61133444352
7213403043
oct60565754
926030135
1012774380
117235643
1243406b8
132853608
1419a755a
1511c5005
hexc2ebec

12774380 has 12 divisors (see below), whose sum is σ = 26826240. Its totient is φ = 5109744.

The previous prime is 12774353. The next prime is 12774383. The reversal of 12774380 is 8347721.

It is a happy number.

It is a super-3 number, since 3×127743803 (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 (12774383) 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, 319340 + ... + 319379.

It is an arithmetic number, because the mean of its divisors is an integer number (2235520).

Almost surely, 212774380 is an apocalyptic number.

12774380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12774380 is an abundant number, since it is smaller than the sum of its proper divisors (14051860).

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

12774380 is a wasteful number, since it uses less digits than its factorization.

12774380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 638728 (or 638726 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 12774380 is about 3574.1264667048. The cubic root of 12774380 is about 233.7652453667.

The spelling of 12774380 in words is "twelve million, seven hundred seventy-four thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 638719 1277438 2554876 3193595 6387190 12774380