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17142625 = 53294729
BaseRepresentation
bin100000101100…
…1001101100001
31012020221021001
41001121031201
513342031000
61411232001
7265465333
oct101311541
935227231
1017142625
119749565
1258a8601
133722986
1423c3453
15178946a
hex1059361

17142625 has 16 divisors (see below), whose sum is σ = 22136400. Its totient is φ = 13238400.

The previous prime is 17142623. The next prime is 17142649. The reversal of 17142625 is 52624171.

It can be written as a sum of positive squares in 8 ways, for example, as 10751841 + 6390784 = 3279^2 + 2528^2 .

It is not a de Polignac number, because 17142625 - 21 = 17142623 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 17142593 and 17142602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17142623) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1261 + ... + 5989.

It is an arithmetic number, because the mean of its divisors is an integer number (1383525).

Almost surely, 217142625 is an apocalyptic number.

It is an amenable number.

17142625 is a deficient number, since it is larger than the sum of its proper divisors (4993775).

17142625 is an equidigital number, since it uses as much as digits as its factorization.

17142625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4773 (or 4763 counting only the distinct ones).

The product of its digits is 3360, while the sum is 28.

The square root of 17142625 is about 4140.3653220459. The cubic root of 17142625 is about 257.8452339826.

Adding to 17142625 its reverse (52624171), we get a palindrome (69766796).

The spelling of 17142625 in words is "seventeen million, one hundred forty-two thousand, six hundred twenty-five".

Divisors: 1 5 25 29 125 145 725 3625 4729 23645 118225 137141 591125 685705 3428525 17142625