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470515055481 = 322286472
BaseRepresentation
bin1101101100011001110…
…00011111101101111001
31122222111000002100011100
412312030320133231321
530202103323233411
61000052430322013
745664541661102
oct6661470375571
91588430070140
10470515055481
111715a9534259
1277232659309
13354a56ac743
1418ab736d3a9
15c38c348456
hex6d8ce1fb79

470515055481 has 9 divisors (see below), whose sum is σ = 679635830341. Its totient is φ = 313675331772.

The previous prime is 470515055467. The next prime is 470515055489. The reversal of 470515055481 is 184550515074.

The square root of 470515055481 is 685941.

It is a perfect power (a square), and thus also a powerful number.

470515055481 is a `hidden beast` number, since 4 + 7 + 0 + 5 + 15 + 0 + 554 + 81 = 666.

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 470515055481 - 215 = 470515022713 is a prime.

It is a super-2 number, since 2×4705150554812 (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (470515055489) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1943500 + ... + 2172146.

Almost surely, 2470515055481 is an apocalyptic number.

470515055481 is the 685941-st square number.

470515055481 is the 342971-st centered octagonal number.

It is an amenable number.

470515055481 is a deficient number, since it is larger than the sum of its proper divisors (209120774860).

470515055481 is an frugal number, since it uses more digits than its factorization.

470515055481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457300 (or 228650 counting only the distinct ones).

The product of its (nonzero) digits is 560000, while the sum is 45.

The spelling of 470515055481 in words is "four hundred seventy billion, five hundred fifteen million, fifty-five thousand, four hundred eighty-one".

Divisors: 1 3 9 228647 685941 2057823 52279450609 156838351827 470515055481