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13122451525330 = 2572229202957637
BaseRepresentation
bin1011111011110100111100…
…0011111100111011010010
31201110111100012122112022101
42332331033003330323102
53204444240042302310
643524212045431014
72523031403400100
oct276751703747322
951414305575271
1013122451525330
1141aa22286a104
12157b27656b46a
13742598a2bb94
143351b6ba0c70
1517b52999043a
hexbef4f0fced2

13122451525330 has 96 divisors (see below), whose sum is σ = 27610872937200. Its totient is φ = 4477193989632.

The previous prime is 13122451525321. The next prime is 13122451525331. The reversal of 13122451525330 is 3352515422131.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 12607775852049 + 514675673281 = 3550743^2 + 717409^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 13122451525330.

It is not an unprimeable number, because it can be changed into a prime (13122451525331) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 227645272 + ... + 227702908.

Almost surely, 213122451525330 is an apocalyptic number.

13122451525330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13122451525330 is an abundant number, since it is smaller than the sum of its proper divisors (14488421411870).

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

13122451525330 is a wasteful number, since it uses less digits than its factorization.

13122451525330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59916 (or 59909 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 37.

Adding to 13122451525330 its reverse (3352515422131), we get a palindrome (16474966947461).

The spelling of 13122451525330 in words is "thirteen trillion, one hundred twenty-two billion, four hundred fifty-one million, five hundred twenty-five thousand, three hundred thirty".

Divisors: 1 2 5 7 10 14 35 49 70 98 229 245 458 490 1145 1603 2029 2290 3206 4058 8015 10145 11221 14203 16030 20290 22442 28406 56105 57637 71015 99421 112210 115274 142030 198842 288185 403459 464641 497105 576370 806918 929282 994210 2017295 2323205 2824213 3252487 4034590 4646410 5648426 6504974 13198873 14121065 16262435 22767409 26397746 28242130 32524870 45534818 65994365 92392111 113837045 116945473 131988730 184784222 227674090 233890946 461960555 584727365 646744777 818618311 923921110 1169454730 1293489554 1637236622 3233723885 4093091555 5730328177 6467447770 8186183110 11460656354 26780513317 28651640885 53561026634 57303281770 133902566585 187463593219 267805133170 374927186438 937317966095 1312245152533 1874635932190 2624490305066 6561225762665 13122451525330