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13470973 = 121711069
BaseRepresentation
bin110011011000…
…110011111101
3221100101200221
4303120303331
511422032343
61200421341
7222333655
oct63306375
927311627
1013470973
117670a3a
124617851
132a386b9
141b09365
1512b15ed
hexcd8cfd

13470973 has 4 divisors (see below), whose sum is σ = 13483260. Its totient is φ = 13458688.

The previous prime is 13470967. The next prime is 13471009. The reversal of 13470973 is 37907431.

13470973 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2699449 + 10771524 = 1643^2 + 3282^2 .

It is a cyclic number.

It is not a de Polignac number, because 13470973 - 213 = 13462781 is a prime.

It is a super-3 number, since 3×134709733 (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13470913) 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, 4318 + ... + 6751.

It is an arithmetic number, because the mean of its divisors is an integer number (3370815).

Almost surely, 213470973 is an apocalyptic number.

It is an amenable number.

13470973 is a deficient number, since it is larger than the sum of its proper divisors (12287).

13470973 is a wasteful number, since it uses less digits than its factorization.

13470973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12286.

The product of its (nonzero) digits is 15876, while the sum is 34.

The square root of 13470973 is about 3670.2824142019. The cubic root of 13470973 is about 237.9393779644.

The spelling of 13470973 in words is "thirteen million, four hundred seventy thousand, nine hundred seventy-three".

Divisors: 1 1217 11069 13470973