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13452805 = 57336857
BaseRepresentation
bin110011010100…
…011000000101
3221022110210001
4303110120011
511420442210
61200201301
7222230002
oct63243005
927273701
1013452805
117659323
124609231
132a30352
141b028a9
1512ab03a
hexcd4605

13452805 has 8 divisors (see below), whose sum is σ = 16364952. Its totient is φ = 10614528.

The previous prime is 13452773. The next prime is 13452811. The reversal of 13452805 is 50825431.

13452805 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2122849 + 11329956 = 1457^2 + 3366^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13452805 - 25 = 13452773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18064 + ... + 18793.

It is an arithmetic number, because the mean of its divisors is an integer number (2045619).

Almost surely, 213452805 is an apocalyptic number.

It is an amenable number.

13452805 is a deficient number, since it is larger than the sum of its proper divisors (2912147).

13452805 is an equidigital number, since it uses as much as digits as its factorization.

13452805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36935.

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 13452805 is about 3667.8065652376. The cubic root of 13452805 is about 237.8323620008.

The spelling of 13452805 in words is "thirteen million, four hundred fifty-two thousand, eight hundred five".

Divisors: 1 5 73 365 36857 184285 2690561 13452805