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13277480 = 235331937
BaseRepresentation
bin110010101001…
…100100101000
3220222120021112
4302221210220
511344334410
61152325452
7220566566
oct62514450
926876245
1013277480
117549627
124543888
13299b5c8
141a98a36
151274105
hexca9928

13277480 has 16 divisors (see below), whose sum is σ = 29874420. Its totient is φ = 5310976.

The previous prime is 13277471. The next prime is 13277483. The reversal of 13277480 is 8477231.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 13235044 + 42436 = 3638^2 + 206^2 .

It is not an unprimeable number, because it can be changed into a prime (13277483) 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, 165929 + ... + 166008.

Almost surely, 213277480 is an apocalyptic number.

13277480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13277480 is an abundant number, since it is smaller than the sum of its proper divisors (16596940).

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

13277480 is a wasteful number, since it uses less digits than its factorization.

13277480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331948 (or 331944 counting only the distinct ones).

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

The square root of 13277480 is about 3643.8276578345. The cubic root of 13277480 is about 236.7946496387.

The spelling of 13277480 in words is "thirteen million, two hundred seventy-seven thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 331937 663874 1327748 1659685 2655496 3319370 6638740 13277480