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492440481 = 321325692
BaseRepresentation
bin11101010110100…
…000101110100001
31021022121120100100
4131112200232201
52002031043411
6120510413013
715126450351
oct3526405641
91238546310
10492440481
11232a73905
12118b01169
137b039300
1449588b61
152d373456
hex1d5a0ba1

492440481 has 27 divisors (see below), whose sum is σ = 771583449. Its totient is φ = 302507712.

The previous prime is 492440467. The next prime is 492440483. The reversal of 492440481 is 184044294.

The square root of 492440481 is 22191.

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

It can be written as a sum of positive squares in 4 ways, for example, as 232715025 + 259725456 = 15255^2 + 16116^2 .

It is not a de Polignac number, because 492440481 - 27 = 492440353 is a prime.

It is a super-2 number, since 2×4924404812 = 484995254655022722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (492440483) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 865165 + ... + 865733.

Almost surely, 2492440481 is an apocalyptic number.

492440481 is the 22191-st square number.

492440481 is the 11096-th centered octagonal number.

It is an amenable number.

492440481 is a deficient number, since it is larger than the sum of its proper divisors (279142968).

492440481 is an equidigital number, since it uses as much as digits as its factorization.

492440481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1170 (or 585 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The cubic root of 492440481 is about 789.6802001005.

Multiplying 492440481 by its sum of digits (36), we get a square (17727857316 = 1331462).

Multiplying 492440481 by its product of nonzero digits (36864), we get a square (18153325891584 = 42606722).

The spelling of 492440481 in words is "four hundred ninety-two million, four hundred forty thousand, four hundred eighty-one".

Divisors: 1 3 9 13 39 117 169 507 569 1521 1707 5121 7397 22191 66573 96161 288483 323761 865449 971283 2913849 4208893 12626679 37880037 54715609 164146827 492440481