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17072101 = 18194321
BaseRepresentation
bin100000100011…
…1111111100101
31012010100112001
41001013333211
513332301401
61405525301
7265052614
oct101077745
935110461
1017072101
119700582
125873831
1336c9847
1423a587b
151773601
hex1047fe5

17072101 has 4 divisors (see below), whose sum is σ = 17166604. Its totient is φ = 16977600.

The previous prime is 17072093. The next prime is 17072117. The reversal of 17072101 is 10127071.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10127071 = 73138727.

It can be written as a sum of positive squares in 2 ways, for example, as 7431076 + 9641025 = 2726^2 + 3105^2 .

It is a cyclic number.

It is not a de Polignac number, because 17072101 - 23 = 17072093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17072401) 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, 46980 + ... + 47341.

It is an arithmetic number, because the mean of its divisors is an integer number (4291651).

Almost surely, 217072101 is an apocalyptic number.

It is an amenable number.

17072101 is a deficient number, since it is larger than the sum of its proper divisors (94503).

17072101 is an equidigital number, since it uses as much as digits as its factorization.

17072101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94502.

The product of its (nonzero) digits is 98, while the sum is 19.

The square root of 17072101 is about 4131.8399049334. The cubic root of 17072101 is about 257.4911600321.

Adding to 17072101 its reverse (10127071), we get a palindrome (27199172).

The spelling of 17072101 in words is "seventeen million, seventy-two thousand, one hundred one".

Divisors: 1 181 94321 17072101