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13475481 = 34491827
BaseRepresentation
bin110011011001…
…111010011001
3221100121212220
4303121322121
511422203411
61200454253
7222353055
oct63317231
927317786
1013475481
117674368
12461a389
132a3a776
141b0ac65
1512b2b06
hexcd9e99

13475481 has 4 divisors (see below), whose sum is σ = 17967312. Its totient is φ = 8983652.

The previous prime is 13475477. The next prime is 13475507. The reversal of 13475481 is 18457431.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13475481 - 22 = 13475477 is a prime.

It is a super-2 number, since 2×134754812 = 363177176362722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13475431) 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, 2245911 + ... + 2245916.

It is an arithmetic number, because the mean of its divisors is an integer number (4491828).

Almost surely, 213475481 is an apocalyptic number.

It is an amenable number.

13475481 is a deficient number, since it is larger than the sum of its proper divisors (4491831).

13475481 is an equidigital number, since it uses as much as digits as its factorization.

13475481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4491830.

The product of its digits is 13440, while the sum is 33.

The square root of 13475481 is about 3670.8964845117. The cubic root of 13475481 is about 237.9659167821.

The spelling of 13475481 in words is "thirteen million, four hundred seventy-five thousand, four hundred eighty-one".

Divisors: 1 3 4491827 13475481