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405011241 = 3245001249
BaseRepresentation
bin11000001000111…
…111101100101001
31001020002200222100
4120020333230221
51312140324431
6104104444013
713015352535
oct3010775451
91036080870
10405011241
11198688a38
12b3779609
1365ba752b
143bb0abc5
15258534e6
hex1823fb29

405011241 has 6 divisors (see below), whose sum is σ = 585016250. Its totient is φ = 270007488.

The previous prime is 405011219. The next prime is 405011251. The reversal of 405011241 is 142110504.

405011241 is a `hidden beast` number, since 40 + 501 + 124 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 385297641 + 19713600 = 19629^2 + 4440^2 .

It is not a de Polignac number, because 405011241 - 215 = 404978473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (405011251) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22500616 + ... + 22500633.

Almost surely, 2405011241 is an apocalyptic number.

It is an amenable number.

405011241 is a deficient number, since it is larger than the sum of its proper divisors (180005009).

405011241 is a wasteful number, since it uses less digits than its factorization.

405011241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45001255 (or 45001252 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 405011241 is about 20124.8910804506. The cubic root of 405011241 is about 739.8704673444.

Adding to 405011241 its reverse (142110504), we get a palindrome (547121745).

The spelling of 405011241 in words is "four hundred five million, eleven thousand, two hundred forty-one".

Divisors: 1 3 9 45001249 135003747 405011241