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13470989 = 74574211
BaseRepresentation
bin110011011000…
…110100001101
3221100101201112
4303120310031
511422032424
61200421405
7222334010
oct63306415
927311645
1013470989
117670a54
124617865
132a386cc
141b09377
1512b160e
hexcd8d0d

13470989 has 8 divisors (see below), whose sum is σ = 15432768. Its totient is φ = 11518560.

The previous prime is 13470967. The next prime is 13471009. The reversal of 13470989 is 98907431.

It is a happy number.

13470989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13470989 is a prime.

It is a super-3 number, since 3×134709893 (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13470929) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1094 + ... + 5304.

It is an arithmetic number, because the mean of its divisors is an integer number (1929096).

Almost surely, 213470989 is an apocalyptic number.

It is an amenable number.

13470989 is a deficient number, since it is larger than the sum of its proper divisors (1961779).

13470989 is an equidigital number, since it uses as much as digits as its factorization.

13470989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4675.

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 13470989 is about 3670.2845938701. The cubic root of 13470989 is about 237.9394721677.

The spelling of 13470989 in words is "thirteen million, four hundred seventy thousand, nine hundred eighty-nine".

Divisors: 1 7 457 3199 4211 29477 1924427 13470989