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1304201131 = 23187130307
BaseRepresentation
bin100110110111100…
…1000011110101011
310100220002021121121
41031233020132223
510132333414011
6333225320111
744214345442
oct11557103653
93326067547
101304201131
1160a207682
12304936037
1317a27925c
14c52d5d59
157976ee71
hex4dbc87ab

1304201131 has 8 divisors (see below), whose sum is σ = 1361677824. Its totient is φ = 1246788840.

The previous prime is 1304201117. The next prime is 1304201147. The reversal of 1304201131 is 1311024031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1304201131 - 29 = 1304200619 is a prime.

It is a super-2 number, since 2×13042011312 = 3401881180203358322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1304201191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27880 + ... + 58186.

It is an arithmetic number, because the mean of its divisors is an integer number (170209728).

Almost surely, 21304201131 is an apocalyptic number.

1304201131 is a deficient number, since it is larger than the sum of its proper divisors (57476693).

1304201131 is a wasteful number, since it uses less digits than its factorization.

1304201131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32201.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1304201131 is about 36113.7249671091. The cubic root of 1304201131 is about 1092.5672815764.

Adding to 1304201131 its reverse (1311024031), we get a palindrome (2615225162).

The spelling of 1304201131 in words is "one billion, three hundred four million, two hundred one thousand, one hundred thirty-one".

Divisors: 1 23 1871 30307 43033 697061 56704397 1304201131