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13101311020 = 2257794792473
BaseRepresentation
bin11000011001110011…
…00010010000101100
31020211001102120001111
430030321202100230
5203312413423040
610004010321404
7642443210020
oct141471422054
936731376044
1013101311020
115613391976
122657729264
13130a384155
148c3dbc380
1551a2b4dea
hex30ce6242c

13101311020 has 96 divisors (see below), whose sum is σ = 31920537600. Its totient is φ = 4423970304.

The previous prime is 13101311017. The next prime is 13101311029. The reversal of 13101311020 is 2011310131.

It is not an unprimeable number, because it can be changed into a prime (13101311029) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5296504 + ... + 5298976.

It is an arithmetic number, because the mean of its divisors is an integer number (332505600).

Almost surely, 213101311020 is an apocalyptic number.

13101311020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13101311020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15960268800).

13101311020 is an abundant number, since it is smaller than the sum of its proper divisors (18819226580).

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

13101311020 is a wasteful number, since it uses less digits than its factorization.

13101311020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3047 (or 3045 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 13101311020 its reverse (2011310131), we get a palindrome (15112621151).

The spelling of 13101311020 in words is "thirteen billion, one hundred one million, three hundred eleven thousand, twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 79 140 158 316 395 479 553 790 958 1106 1580 1916 2212 2395 2473 2765 3353 4790 4946 5530 6706 9580 9892 11060 12365 13412 16765 17311 24730 33530 34622 37841 49460 67060 69244 75682 86555 151364 173110 189205 195367 264887 346220 378410 390734 529774 756820 781468 976835 1059548 1184567 1324435 1367569 1953670 2369134 2648870 2735138 3907340 4738268 5297740 5470276 5922835 6837845 8291969 11845670 13675690 16583938 23691340 27351380 33167876 41459845 82919690 93580793 165839380 187161586 374323172 467903965 655065551 935807930 1310131102 1871615860 2620262204 3275327755 6550655510 13101311020