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13421130312 = 2336837331117
BaseRepresentation
bin11000111111111011…
…00011001001001000
31021122100020001122110
430133331203021020
5204441302132222
610055433222320
7653405503542
oct143775431110
937570201573
1013421130312
115767972937
1227268619a0
13135b701035
14914670692
155383db30c
hex31ff63248

13421130312 has 64 divisors (see below), whose sum is σ = 33677916480. Its totient is φ = 4457071872.

The previous prime is 13421130299. The next prime is 13421130319. The reversal of 13421130312 is 21303112431.

It is a super-3 number, since 3×134211303123 (a number of 31 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (13421130319) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12014778 + ... + 12015894.

It is an arithmetic number, because the mean of its divisors is an integer number (526217445).

Almost surely, 213421130312 is an apocalyptic number.

13421130312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13421130312 is an abundant number, since it is smaller than the sum of its proper divisors (20256786168).

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

13421130312 is a wasteful number, since it uses less digits than its factorization.

13421130312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2542 (or 2538 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 13421130312 its reverse (21303112431), we get a palindrome (34724242743).

The spelling of 13421130312 in words is "thirteen billion, four hundred twenty-one million, one hundred thirty thousand, three hundred twelve".

Divisors: 1 2 3 4 6 8 12 24 683 733 1117 1366 1466 2049 2199 2234 2732 2932 3351 4098 4398 4468 5464 5864 6702 8196 8796 8936 13404 16392 17592 26808 500639 762911 818761 1001278 1501917 1525822 1637522 2002556 2288733 2456283 3003834 3051644 3275044 4005112 4577466 4912566 6007668 6103288 6550088 9154932 9825132 12015336 18309864 19650264 559213763 1118427526 1677641289 2236855052 3355282578 4473710104 6710565156 13421130312