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12197286244 = 221113712331289
BaseRepresentation
bin10110101110000001…
…11101000101100100
31011111001100100012101
423113000331011210
5144440001124434
65334154101444
7611155136203
oct132700750544
934431310171
1012197286244
11519a060760
122444a1a884
1311c4cab850
14839cd523a
154b5c40b14
hex2d703d164

12197286244 has 96 divisors (see below), whose sum is σ = 25559089920. Its totient is φ = 5020108800.

The previous prime is 12197286209. The next prime is 12197286247. The reversal of 12197286244 is 44268279121.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 12197286194 and 12197286203.

It is not an unprimeable number, because it can be changed into a prime (12197286247) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9461952 + ... + 9463240.

It is an arithmetic number, because the mean of its divisors is an integer number (266240520).

Almost surely, 212197286244 is an apocalyptic number.

It is an amenable number.

12197286244 is an abundant number, since it is smaller than the sum of its proper divisors (13361803676).

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

12197286244 is a wasteful number, since it uses less digits than its factorization.

12197286244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1621 (or 1619 counting only the distinct ones).

The product of its digits is 387072, while the sum is 46.

The spelling of 12197286244 in words is "twelve billion, one hundred ninety-seven million, two hundred eighty-six thousand, two hundred forty-four".

Divisors: 1 2 4 11 13 22 26 44 52 71 142 143 233 284 286 466 572 781 923 932 1289 1562 1846 2563 2578 3029 3124 3692 5126 5156 6058 10153 10252 12116 14179 16543 16757 20306 28358 33086 33319 33514 40612 56716 66172 66638 67028 91519 133276 181973 183038 184327 215059 300337 363946 366076 368654 430118 600674 727892 737308 860236 1006709 1189747 1201348 2013418 2365649 2379494 3303707 3904381 4026836 4731298 4758988 6607414 7808762 9462596 13087217 13214828 15617524 21323927 26174434 42647854 42948191 52348868 85295708 85896382 171792764 234563197 277211051 469126394 554422102 938252788 1108844204 3049321561 6098643122 12197286244