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220125017 = 73147113191
BaseRepresentation
bin11010001111011…
…01011101011001
3120100012111202102
431013231131121
5422323000032
633502013145
75312013620
oct1507553531
9510174672
10220125017
11103289202
12618771b5
13367b25b8
14213406b7
15144d2362
hexd1ed759

220125017 has 32 divisors (see below), whose sum is σ = 268959744. Its totient is φ = 176198400.

The previous prime is 220125011. The next prime is 220125029. The reversal of 220125017 is 710521022.

It is not a de Polignac number, because 220125017 - 212 = 220120921 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 220125017.

It is not an unprimeable number, because it can be changed into a prime (220125011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1152392 + ... + 1152582.

It is an arithmetic number, because the mean of its divisors is an integer number (8404992).

Almost surely, 2220125017 is an apocalyptic number.

It is an amenable number.

220125017 is a deficient number, since it is larger than the sum of its proper divisors (48834727).

220125017 is a wasteful number, since it uses less digits than its factorization.

220125017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389.

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 220125017 is about 14836.6106978649. The cubic root of 220125017 is about 603.7954011127.

Adding to 220125017 its reverse (710521022), we get a palindrome (930646039).

The spelling of 220125017 in words is "two hundred twenty million, one hundred twenty-five thousand, seventeen".

Divisors: 1 7 31 47 113 191 217 329 791 1337 1457 3503 5311 5921 8977 10199 21583 24521 37177 41447 62839 151081 164641 278287 669073 1014401 1152487 1948009 4683511 7100807 31446431 220125017