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2160297441 = 32154932
BaseRepresentation
bin1000000011000011…
…1000010111100001
312120112222110222100
42000300320113201
513411014004231
6554210401013
7104351140161
oct20060702741
95515873870
102160297441
11a09482495
12503590169
13285740313
14166ca45a1
15c99c81e6
hex80c385e1

2160297441 has 9 divisors (see below), whose sum is σ = 3120631059. Its totient is φ = 1440105336.

The previous prime is 2160297439. The next prime is 2160297481. The reversal of 2160297441 is 1447920612.

It is a happy number.

The square root of 2160297441 is 46479.

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

2160297441 is a `hidden beast` number, since 2 + 1 + 602 + 9 + 7 + 4 + 41 = 666.

It can be written as a sum of positive squares in only one way, i.e., 99500625 + 2060796816 = 9975^2 + 45396^2 .

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

It is not a de Polignac number, because 2160297441 - 21 = 2160297439 is a prime.

It is a super-2 number, since 2×21602974412 = 9333770067182296962, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2160297396 and 2160297405.

It is not an unprimeable number, because it can be changed into a prime (2160297401) 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, 131691 + ... + 147183.

Almost surely, 22160297441 is an apocalyptic number.

2160297441 is the 46479-th square number.

2160297441 is the 23240-th centered octagonal number.

It is an amenable number.

2160297441 is a deficient number, since it is larger than the sum of its proper divisors (960333618).

2160297441 is an frugal number, since it uses more digits than its factorization.

2160297441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30992 (or 15496 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The cubic root of 2160297441 is about 1292.7201462225.

Multiplying 2160297441 by its sum of digits (36), we get a square (77770707876 = 2788742).

The spelling of 2160297441 in words is "two billion, one hundred sixty million, two hundred ninety-seven thousand, four hundred forty-one".

Divisors: 1 3 9 15493 46479 139437 240033049 720099147 2160297441