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405103244 = 227131112921
BaseRepresentation
bin11000001001010…
…110001010001100
31001020021101011212
4120021112022030
51312201300434
6104110433552
713016215010
oct3011261214
91036241155
10405103244
11198741077
12b38028b8
1365c0a380
143bb32540
15258708ce
hex1825628c

405103244 has 24 divisors (see below), whose sum is σ = 872530848. Its totient is φ = 160260480.

The previous prime is 405103243. The next prime is 405103249. The reversal of 405103244 is 442301504.

It is not an unprimeable number, because it can be changed into a prime (405103241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 556097 + ... + 556824.

It is an arithmetic number, because the mean of its divisors is an integer number (36355452).

Almost surely, 2405103244 is an apocalyptic number.

It is an amenable number.

405103244 is an abundant number, since it is smaller than the sum of its proper divisors (467427604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

405103244 is a wasteful number, since it uses less digits than its factorization.

405103244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1112945 (or 1112943 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 405103244 is about 20127.1767518448. The cubic root of 405103244 is about 739.9264864883.

Adding to 405103244 its reverse (442301504), we get a palindrome (847404748).

The spelling of 405103244 in words is "four hundred five million, one hundred three thousand, two hundred forty-four".

Divisors: 1 2 4 7 13 14 26 28 52 91 182 364 1112921 2225842 4451684 7790447 14467973 15580894 28935946 31161788 57871892 101275811 202551622 405103244