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13313211200 = 26529785781
BaseRepresentation
bin11000110011000011…
…10111101101000000
31021100211011012110022
430121201313231000
5204231140224300
610041020153012
7650625266552
oct143141675500
937324135408
1013313211200
115711a62693
1226b6698768
131342246b83
149041bb4d2
1552dbc0285
hex319877b40

13313211200 has 84 divisors (see below), whose sum is σ = 33096925932. Its totient is φ = 5270323200.

The previous prime is 13313211181. The next prime is 13313211269. The reversal of 13313211200 is 211231331.

It can be written as a sum of positive squares in 6 ways, for example, as 95570176 + 13217641024 = 9776^2 + 114968^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 112310 + ... + 198090.

It is an arithmetic number, because the mean of its divisors is an integer number (394011023).

Almost surely, 213313211200 is an apocalyptic number.

13313211200 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 13313211200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16548462966).

13313211200 is an abundant number, since it is smaller than the sum of its proper divisors (19783714732).

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

13313211200 is an equidigital number, since it uses as much as digits as its factorization.

13313211200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85900 (or 85885 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 13313211200 its reverse (211231331), we get a palindrome (13524442531).

The spelling of 13313211200 in words is "thirteen billion, three hundred thirteen million, two hundred eleven thousand, two hundred".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 64 80 97 100 160 194 200 320 388 400 485 776 800 970 1552 1600 1940 2425 3104 3880 4850 6208 7760 9700 15520 19400 31040 38800 77600 85781 155200 171562 343124 428905 686248 857810 1372496 1715620 2144525 2744992 3431240 4289050 5489984 6862480 8320757 8578100 13724960 16641514 17156200 27449920 33283028 34312400 41603785 66566056 68624800 83207570 133132112 137249600 166415140 208018925 266264224 332830280 416037850 532528448 665660560 832075700 1331321120 1664151400 2662642240 3328302800 6656605600 13313211200