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13091081600 = 275223917117
BaseRepresentation
bin11000011000100101…
…00000110110000000
31020210100011211221002
430030102200312000
5203302304102400
610003003151132
7642260233442
oct141422406600
936710154832
1013091081600
115608635403
1226542154a8
13130821203c
148c28b8492
15519443ed5
hex30c4a0d80

13091081600 has 96 divisors (see below), whose sum is σ = 32476269600. Its totient is φ = 5214218240.

The previous prime is 13091081579. The next prime is 13091081671. The reversal of 13091081600 is 618019031.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 756242 + ... + 773358.

It is an arithmetic number, because the mean of its divisors is an integer number (338294475).

Almost surely, 213091081600 is an apocalyptic number.

13091081600 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 13091081600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16238134800).

13091081600 is an abundant number, since it is smaller than the sum of its proper divisors (19385188000).

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

13091081600 is a wasteful number, since it uses less digits than its factorization.

13091081600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17380 (or 17363 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 29.

The spelling of 13091081600 in words is "thirteen billion, ninety-one million, eighty-one thousand, six hundred".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 64 80 100 128 160 200 239 320 400 478 640 800 956 1195 1600 1912 2390 3200 3824 4780 5975 7648 9560 11950 15296 17117 19120 23900 30592 34234 38240 47800 68468 76480 85585 95600 136936 152960 171170 191200 273872 342340 382400 427925 547744 684680 764800 855850 1095488 1369360 1711700 2190976 2738720 3423400 4090963 5477440 6846800 8181926 10954880 13693600 16363852 20454815 27387200 32727704 40909630 54774400 65455408 81819260 102274075 130910816 163638520 204548150 261821632 327277040 409096300 523643264 654554080 818192600 1309108160 1636385200 2618216320 3272770400 6545540800 13091081600