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1301303131 = 172231371429
BaseRepresentation
bin100110110010000…
…0100111101011011
310100200122001022021
41031210010331123
510131113200011
6333043235311
744150615452
oct11544047533
93320561267
101301303131
11608608337
12303978b37
131797a316b
14c4b7db99
157939b471
hex4d904f5b

1301303131 has 24 divisors (see below), whose sum is σ = 1454001120. Its totient is φ = 1162140672.

The previous prime is 1301303111. The next prime is 1301303153. The reversal of 1301303131 is 1313031031.

It is not a de Polignac number, because 1301303131 - 25 = 1301303099 is a prime.

It is a super-2 number, since 2×13013031312 = 3386779677500806322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1301303111) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 909925 + ... + 911353.

It is an arithmetic number, because the mean of its divisors is an integer number (60583380).

Almost surely, 21301303131 is an apocalyptic number.

1301303131 is a deficient number, since it is larger than the sum of its proper divisors (152697989).

1301303131 is a wasteful number, since it uses less digits than its factorization.

1301303131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1623 (or 1606 counting only the distinct ones).

The product of its (nonzero) digits is 81, while the sum is 16.

The square root of 1301303131 is about 36073.5794037686. The cubic root of 1301303131 is about 1091.7574350985.

Adding to 1301303131 its reverse (1313031031), we get a palindrome (2614334162).

The spelling of 1301303131 in words is "one billion, three hundred one million, three hundred three thousand, one hundred thirty-one".

Divisors: 1 17 23 137 289 391 1429 2329 3151 6647 24293 32867 39593 53567 195773 412981 558739 910639 3328141 4502779 9498563 56578397 76547243 1301303131