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12380481 = 321375609
BaseRepresentation
bin101111001110…
…100101000001
3212021222211100
4233032211001
511132133411
61121205013
7210142461
oct57164501
925258740
1012380481
116a96703
124190769
132746239
141903ba1
151148456
hexbce941

12380481 has 6 divisors (see below), whose sum is σ = 17882930. Its totient is φ = 8253648.

The previous prime is 12380453. The next prime is 12380491. The reversal of 12380481 is 18408321.

12380481 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 12362256 + 18225 = 3516^2 + 135^2 .

It is not a de Polignac number, because 12380481 - 25 = 12380449 is a prime.

It is a super-2 number, since 2×123804812 = 306552619582722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12380491) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 687796 + ... + 687813.

Almost surely, 212380481 is an apocalyptic number.

It is an amenable number.

12380481 is a deficient number, since it is larger than the sum of its proper divisors (5502449).

12380481 is a wasteful number, since it uses less digits than its factorization.

12380481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1375615 (or 1375612 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 12380481 is about 3518.5907690438. The cubic root of 12380481 is about 231.3373941896.

The spelling of 12380481 in words is "twelve million, three hundred eighty thousand, four hundred eighty-one".

Divisors: 1 3 9 1375609 4126827 12380481