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13111020414 = 23219239160403
BaseRepresentation
bin11000011010111101…
…00100101101111110
31020211201200211211200
430031132210231332
5203322410123124
610004554400330
7642621556212
oct141536445576
936751624750
1013111020414
115618913768
12265aa300a6
13130c3a365b
148c53c8942
1551b081bc9
hex30d7a4b7e

13111020414 has 48 divisors (see below), whose sum is σ = 30027628800. Its totient is φ = 4122973008.

The previous prime is 13111020413. The next prime is 13111020463. The reversal of 13111020414 is 41402011131.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13111020413) 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, 1537 + ... + 161939.

It is an arithmetic number, because the mean of its divisors is an integer number (625575600).

Almost surely, 213111020414 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13111020414, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15013814400).

13111020414 is an abundant number, since it is smaller than the sum of its proper divisors (16916608386).

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

13111020414 is a wasteful number, since it uses less digits than its factorization.

13111020414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160669 (or 160666 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 13111020414 its reverse (41402011131), we get a palindrome (54513031545).

The spelling of 13111020414 in words is "thirteen billion, one hundred eleven million, twenty thousand, four hundred fourteen".

Divisors: 1 2 3 6 9 18 19 38 57 114 171 239 342 478 717 1434 2151 4302 4541 9082 13623 27246 40869 81738 160403 320806 481209 962418 1443627 2887254 3047657 6095314 9142971 18285942 27428913 38336317 54857826 76672634 115008951 230017902 345026853 690053706 728390023 1456780046 2185170069 4370340138 6555510207 13111020414