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475205017 = 767886431
BaseRepresentation
bin11100010100110…
…000110110011001
31020010011220201211
4130110300312121
51433123030032
6115053143121
714530114240
oct3424606631
91203156654
10475205017
11224271621
1211318aaa1
13775b3301
144717d957
152babb747
hex1c530d99

475205017 has 4 divisors (see below), whose sum is σ = 543091456. Its totient is φ = 407318580.

The previous prime is 475204979. The next prime is 475205033. The reversal of 475205017 is 710502574.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 710502574 = 2355251287.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-475205017 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 475205017.

It is not an unprimeable number, because it can be changed into a prime (475205117) 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, 33943209 + ... + 33943222.

It is an arithmetic number, because the mean of its divisors is an integer number (135772864).

Almost surely, 2475205017 is an apocalyptic number.

It is an amenable number.

475205017 is a deficient number, since it is larger than the sum of its proper divisors (67886439).

475205017 is an equidigital number, since it uses as much as digits as its factorization.

475205017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67886438.

The product of its (nonzero) digits is 9800, while the sum is 31.

The square root of 475205017 is about 21799.1976228484. The cubic root of 475205017 is about 780.3576143416.

The spelling of 475205017 in words is "four hundred seventy-five million, two hundred five thousand, seventeen".

Divisors: 1 7 67886431 475205017