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1304424131 = 10223127597
BaseRepresentation
bin100110110111111…
…1110111011000011
310100220111121111212
41031233332323003
510132413033011
6333234200335
744216264543
oct11557767303
93326447455
101304424131
1160a34a17a
12304a230ab
1317a3268ca
14c5353323
15797b608b
hex4dbfeec3

1304424131 has 4 divisors (see below), whose sum is σ = 1304561952. Its totient is φ = 1304286312.

The previous prime is 1304424007. The next prime is 1304424133. The reversal of 1304424131 is 1314244031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1314244031 = 2395498929.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1304424131 is a prime.

It is a super-2 number, since 2×13044241312 = 3403044627070210322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1304424097 and 1304424106.

It is not an unprimeable number, because it can be changed into a prime (1304424133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53576 + ... + 74021.

It is an arithmetic number, because the mean of its divisors is an integer number (326140488).

Almost surely, 21304424131 is an apocalyptic number.

1304424131 is a deficient number, since it is larger than the sum of its proper divisors (137821).

1304424131 is a wasteful number, since it uses less digits than its factorization.

1304424131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137820.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 1304424131 is about 36116.8123039672. The cubic root of 1304424131 is about 1092.6295492264.

Adding to 1304424131 its reverse (1314244031), we get a palindrome (2618668162).

The spelling of 1304424131 in words is "one billion, three hundred four million, four hundred twenty-four thousand, one hundred thirty-one".

Divisors: 1 10223 127597 1304424131