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1304424155 = 52116132017
BaseRepresentation
bin100110110111111…
…1110111011011011
310100220111121112202
41031233332323123
510132413033110
6333234200415
744216264606
oct11557767333
93326447482
101304424155
1160a34a1a1
12304a2310b
1317a326918
14c535333d
15797b60a5
hex4dbfeedb

1304424155 has 16 divisors (see below), whose sum is σ = 1576074144. Its totient is φ = 1036385280.

The previous prime is 1304424151. The next prime is 1304424167. The reversal of 1304424155 is 5514244031.

It is not a de Polignac number, because 1304424155 - 22 = 1304424151 is a prime.

It is a super-2 number, since 2×13044241552 = 3403044752294928050, which contains 22 as substring.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1304424151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 645707 + ... + 647723.

It is an arithmetic number, because the mean of its divisors is an integer number (98504634).

Almost surely, 21304424155 is an apocalyptic number.

1304424155 is a deficient number, since it is larger than the sum of its proper divisors (271649989).

1304424155 is a wasteful number, since it uses less digits than its factorization.

1304424155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2846.

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 1304424155 is about 36116.8126362225. The cubic root of 1304424155 is about 1092.6295559275.

Adding to 1304424155 its reverse (5514244031), we get a palindrome (6818668186).

The spelling of 1304424155 in words is "one billion, three hundred four million, four hundred twenty-four thousand, one hundred fifty-five".

Divisors: 1 5 211 613 1055 2017 3065 10085 129343 425587 646715 1236421 2127935 6182105 260884831 1304424155