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13122103300 = 2252416414993
BaseRepresentation
bin11000011100010001…
…10110100000000100
31020212111112220200221
430032020312200010
5203333224301200
610010032114124
7643115015635
oct141610664004
936774486627
1013122103300
1156240a3479
122662695944
131311784087
148c6a7188c
1551c02091a
hex30e236804

13122103300 has 72 divisors (see below), whose sum is σ = 29220832872. Its totient is φ = 5111808000.

The previous prime is 13122103297. The next prime is 13122103303. The reversal of 13122103300 is 330122131.

It is an interprime number because it is at equal distance from previous prime (13122103297) and next prime (13122103303).

It can be written as a sum of positive squares in 12 ways, for example, as 4931129284 + 8190974016 = 70222^2 + 90504^2 .

It is not an unprimeable number, because it can be changed into a prime (13122103303) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2625604 + ... + 2630596.

It is an arithmetic number, because the mean of its divisors is an integer number (405844901).

Almost surely, 213122103300 is an apocalyptic number.

13122103300 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 13122103300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14610416436).

13122103300 is an abundant number, since it is smaller than the sum of its proper divisors (16098729572).

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

13122103300 is a wasteful number, since it uses less digits than its factorization.

13122103300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5689 (or 5682 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 13122103300 its reverse (330122131), we get a palindrome (13452225431).

The spelling of 13122103300 in words is "thirteen billion, one hundred twenty-two million, one hundred three thousand, three hundred".

Divisors: 1 2 4 5 10 20 25 41 50 82 100 164 205 410 641 820 1025 1282 2050 2564 3205 4100 4993 6410 9986 12820 16025 19972 24965 26281 32050 49930 52562 64100 99860 105124 124825 131405 204713 249650 262810 409426 499300 525620 657025 818852 1023565 1314050 2047130 2628100 3200513 4094260 5117825 6401026 10235650 12802052 16002565 20471300 32005130 64010260 80012825 131221033 160025650 262442066 320051300 524884132 656105165 1312210330 2624420660 3280525825 6561051650 13122103300