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34197409 = 294212801
BaseRepresentation
bin1000001001110…
…0111110100001
32101100102000201
42002130332201
532223304114
63220545201
7563446621
oct202347641
971312021
1034197409
1118338024
12b552201
13711466c
144782881
153007874
hex209cfa1

34197409 has 8 divisors (see below), whose sum is σ = 35473320. Its totient is φ = 32928000.

The previous prime is 34197407. The next prime is 34197439. The reversal of 34197409 is 90479143.

It can be written as a sum of positive squares in 4 ways, for example, as 91809 + 34105600 = 303^2 + 5840^2 .

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 34197409 - 21 = 34197407 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (34197407) 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, 10809 + ... + 13609.

It is an arithmetic number, because the mean of its divisors is an integer number (4434165).

Almost surely, 234197409 is an apocalyptic number.

It is an amenable number.

34197409 is a deficient number, since it is larger than the sum of its proper divisors (1275911).

34197409 is a wasteful number, since it uses less digits than its factorization.

34197409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3251.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 34197409 is about 5847.8550768637. The cubic root of 34197409 is about 324.5869593149.

The spelling of 34197409 in words is "thirty-four million, one hundred ninety-seven thousand, four hundred nine".

Divisors: 1 29 421 2801 12209 81229 1179221 34197409