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13012012200 = 23352111971517
BaseRepresentation
bin11000001111001001…
…11000110010101000
31020120211101201002210
430013210320302220
5203122033342300
65551100325120
7640310164425
oct140744706250
936524351083
1013012012200
115577a3a3a0
1226318437a0
1312c4a19405
148b61b4d4c
15512526050
hex307938ca8

13012012200 has 96 divisors (see below), whose sum is σ = 44004281760. Its totient is φ = 3154425600.

The previous prime is 13012012187. The next prime is 13012012201. The reversal of 13012012200 is 221021031.

It is a super-2 number, since 2×130120122002 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (13012012201) 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, 979159 + ... + 992358.

It is an arithmetic number, because the mean of its divisors is an integer number (458377935).

Almost surely, 213012012200 is an apocalyptic number.

13012012200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13012012200 is an abundant number, since it is smaller than the sum of its proper divisors (30992269560).

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

13012012200 is a wasteful number, since it uses less digits than its factorization.

13012012200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1971547 (or 1971538 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 13012012200 its reverse (221021031), we get a palindrome (13233033231).

The spelling of 13012012200 in words is "thirteen billion, twelve million, twelve thousand, two hundred".

Divisors: 1 2 3 4 5 6 8 10 11 12 15 20 22 24 25 30 33 40 44 50 55 60 66 75 88 100 110 120 132 150 165 200 220 264 275 300 330 440 550 600 660 825 1100 1320 1650 2200 3300 6600 1971517 3943034 5914551 7886068 9857585 11829102 15772136 19715170 21686687 23658204 29572755 39430340 43373374 47316408 49287925 59145510 65060061 78860680 86746748 98575850 108433435 118291020 130120122 147863775 173493496 197151700 216866870 236582040 260240244 295727550 325300305 394303400 433733740 520480488 542167175 591455100 650600610 867467480 1084334350 1182910200 1301201220 1626501525 2168668700 2602402440 3253003050 4337337400 6506006100 13012012200