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470502505 = 51189277347
BaseRepresentation
bin11100000010110…
…100110001101001
31012210100000002201
4130002310301221
51430422040010
6114404300201
714442130264
oct3402646151
91183300081
10470502505
1122164a550
121116a1661
1376627a65
14466b7cdb
152b48d23a
hex1c0b4c69

470502505 has 32 divisors (see below), whose sum is σ = 626901120. Its totient is φ = 336145920.

The previous prime is 470502503. The next prime is 470502509. The reversal of 470502505 is 505205074.

It is not a de Polignac number, because 470502505 - 21 = 470502503 is a prime.

It is a super-2 number, since 2×4705025052 = 442745214422550050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (470502503) 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 31 ways as a sum of consecutive naturals, for example, 1355742 + ... + 1356088.

It is an arithmetic number, because the mean of its divisors is an integer number (19590660).

Almost surely, 2470502505 is an apocalyptic number.

It is an amenable number.

470502505 is a deficient number, since it is larger than the sum of its proper divisors (156398615).

470502505 is a wasteful number, since it uses less digits than its factorization.

470502505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 729.

The product of its (nonzero) digits is 7000, while the sum is 28.

The square root of 470502505 is about 21691.0697062178. The cubic root of 470502505 is about 777.7750008555.

Adding to 470502505 its reverse (505205074), we get a palindrome (975707579).

The spelling of 470502505 in words is "four hundred seventy million, five hundred two thousand, five hundred five".

Divisors: 1 5 11 55 89 277 347 445 979 1385 1735 3047 3817 4895 15235 19085 24653 30883 96119 123265 154415 271183 339713 480595 1057309 1355915 1698565 5286545 8554591 42772955 94100501 470502505