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13231131030 = 2335133769553
BaseRepresentation
bin11000101001010001…
…10000100110010110
31021011002201002122000
430110220300212112
5204044132143110
610024525020130
7645610521015
oct142450604626
937132632560
1013231131030
11567a6a0637
1226930b4646
13132b238a20
148d7332a7c
155268aa1c0
hex314a30996

13231131030 has 64 divisors (see below), whose sum is σ = 37997104320. Its totient is φ = 3256892928.

The previous prime is 13231130999. The next prime is 13231131047. The reversal of 13231131030 is 3013113231.

It is a happy number.

13231131030 is a `hidden beast` number, since 1 + 323 + 1 + 1 + 310 + 30 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13231130994 and 13231131012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1881267 + ... + 1888286.

It is an arithmetic number, because the mean of its divisors is an integer number (593704755).

Almost surely, 213231131030 is an apocalyptic number.

13231131030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13231131030 is an abundant number, since it is smaller than the sum of its proper divisors (24765973290).

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

13231131030 is a wasteful number, since it uses less digits than its factorization.

13231131030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3769582 (or 3769576 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 13231131030 its reverse (3013113231), we get a palindrome (16244244261).

The spelling of 13231131030 in words is "thirteen billion, two hundred thirty-one million, one hundred thirty-one thousand, thirty".

Divisors: 1 2 3 5 6 9 10 13 15 18 26 27 30 39 45 54 65 78 90 117 130 135 195 234 270 351 390 585 702 1170 1755 3510 3769553 7539106 11308659 18847765 22617318 33925977 37695530 49004189 56543295 67851954 98008378 101777931 113086590 147012567 169629885 203555862 245020945 294025134 339259770 441037701 490041890 508889655 735062835 882075402 1017779310 1323113103 1470125670 2205188505 2646226206 4410377010 6615565515 13231131030