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472520905 = 5212944389
BaseRepresentation
bin11100001010100…
…001100011001001
31012221010112211021
4130022201203021
51431431132110
6114515432441
714465234653
oct3412414311
91187115737
10472520905
112227a8a4a
121122b5721
1376b8368c
1446a816d3
152b73b2da
hex1c2a18c9

472520905 has 8 divisors (see below), whose sum is σ = 567304200. Its totient is φ = 377830656.

The previous prime is 472520891. The next prime is 472520957. The reversal of 472520905 is 509025274.

It can be written as a sum of positive squares in 4 ways, for example, as 110418064 + 362102841 = 10508^2 + 19029^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 472520905 - 219 = 471996617 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11550 + ... + 32839.

It is an arithmetic number, because the mean of its divisors is an integer number (70913025).

Almost surely, 2472520905 is an apocalyptic number.

It is an amenable number.

472520905 is a deficient number, since it is larger than the sum of its proper divisors (94783295).

472520905 is a wasteful number, since it uses less digits than its factorization.

472520905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46523.

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 472520905 is about 21737.5459746495. The cubic root of 472520905 is about 778.8856017844.

The spelling of 472520905 in words is "four hundred seventy-two million, five hundred twenty thousand, nine hundred five".

Divisors: 1 5 2129 10645 44389 221945 94504181 472520905