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472207717 = 31127277433
BaseRepresentation
bin11100001001010…
…101000101100101
31012220112122012201
4130021111011211
51431341121332
6114505014501
714462461612
oct3411250545
91186478181
10472207717
11222604713
12112184431
1376aa3c67
14469dd509
152b6c85e7
hex1c255165

472207717 has 16 divisors (see below), whose sum is σ = 494190592. Its totient is φ = 450696960.

The previous prime is 472207699. The next prime is 472207721. The reversal of 472207717 is 717702274.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-472207717 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (472207217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1090333 + ... + 1090765.

It is an arithmetic number, because the mean of its divisors is an integer number (30886912).

Almost surely, 2472207717 is an apocalyptic number.

It is an amenable number.

472207717 is a deficient number, since it is larger than the sum of its proper divisors (21982875).

472207717 is a wasteful number, since it uses less digits than its factorization.

472207717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 868.

The product of its (nonzero) digits is 38416, while the sum is 37.

The square root of 472207717 is about 21730.3409315178. The cubic root of 472207717 is about 778.7134813305.

The spelling of 472207717 in words is "four hundred seventy-two million, two hundred seven thousand, seven hundred seventeen".

Divisors: 1 31 127 277 433 3937 8587 13423 35179 54991 119941 1090549 1704721 3718171 15232507 472207717