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13030311210 = 2357237137997
BaseRepresentation
bin11000010001010101…
…01100010100101010
31020122002211101121220
430020222230110222
5203141224424320
65552552442510
7640621550340
oct141052542452
936562741556
1013030311210
1155872a8744
1226379a9436
1312c8755527
148b87b9990
15513e3ce40
hex308aac52a

13030311210 has 128 divisors (see below), whose sum is σ = 37820473344. Its totient is φ = 2808664320.

The previous prime is 13030311167. The next prime is 13030311211. The reversal of 13030311210 is 1211303031.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 13030311210.

It is not an unprimeable number, because it can be changed into a prime (13030311211) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 323932 + ... + 361928.

It is an arithmetic number, because the mean of its divisors is an integer number (295472448).

Almost surely, 213030311210 is an apocalyptic number.

13030311210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 13030311210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18910236672).

13030311210 is an abundant number, since it is smaller than the sum of its proper divisors (24790162134).

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

13030311210 is a wasteful number, since it uses less digits than its factorization.

13030311210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38108.

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 13030311210 its reverse (1211303031), we get a palindrome (14241614241).

The spelling of 13030311210 in words is "thirteen billion, thirty million, three hundred eleven thousand, two hundred ten".

Divisors: 1 2 3 5 6 7 10 14 15 21 23 30 35 42 46 69 70 71 105 115 138 142 161 210 213 230 322 345 355 426 483 497 690 710 805 966 994 1065 1491 1610 1633 2130 2415 2485 2982 3266 4830 4899 4970 7455 8165 9798 11431 14910 16330 22862 24495 34293 37997 48990 57155 68586 75994 113991 114310 171465 189985 227982 265979 342930 379970 531958 569955 797937 873931 1139910 1329895 1595874 1747862 2621793 2659790 2697787 3989685 4369655 5243586 5395574 6117517 7979370 8093361 8739310 12235034 13108965 13488935 16186722 18352551 18884509 26217930 26977870 30587585 36705102 37769018 40466805 56653527 61175170 62049101 80933610 91762755 94422545 113307054 124098202 183525510 186147303 188845090 283267635 310245505 372294606 434343707 566535270 620491010 868687414 930736515 1303031121 1861473030 2171718535 2606062242 4343437070 6515155605 13030311210