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17045431 = 131399433
BaseRepresentation
bin100000100000…
…1011110110111
31012001222221021
41001001132313
513330423211
61405202011
7264612064
oct101013667
935058837
1017045431
119692537
125860307
1336ba670
142399c6b
15176a771
hex10417b7

17045431 has 8 divisors (see below), whose sum is σ = 18490640. Its totient is φ = 15619392.

The previous prime is 17045429. The next prime is 17045453. The reversal of 17045431 is 13454071.

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 17045431 - 21 = 17045429 is a prime.

It is a super-2 number, since 2×170454312 = 581093435951522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 17045396 and 17045405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17045401) 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, 2910 + ... + 6523.

It is an arithmetic number, because the mean of its divisors is an integer number (2311330).

Almost surely, 217045431 is an apocalyptic number.

17045431 is a deficient number, since it is larger than the sum of its proper divisors (1445209).

17045431 is a wasteful number, since it uses less digits than its factorization.

17045431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9585.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 17045431 is about 4128.6112677267. The cubic root of 17045431 is about 257.3570061013.

The spelling of 17045431 in words is "seventeen million, forty-five thousand, four hundred thirty-one".

Divisors: 1 13 139 1807 9433 122629 1311187 17045431