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12975052368100 = 2252292124212
BaseRepresentation
bin1011110011001111110101…
…1000110010100011100100
31200221101212201010111222211
42330303331120302203210
53200040401401234400
643332353510133204
72506262615256604
oct274637530624344
950841781114884
1012975052368100
114152763891699
12155679a951204
13731708259154
1432bdd29d0c04
1517779e3aadba
hexbccfd6328e4

12975052368100 has 81 divisors (see below), whose sum is σ = 29162582362641. Its totient is φ = 5010651273600.

The previous prime is 12975052368079. The next prime is 12975052368119. The reversal of 12975052368100 is 186325057921.

The square root of 12975052368100 is 3602090.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 13 ways, for example, as 1112759155876 + 11862293212224 = 1054874^2 + 3444168^2 .

It is a super-3 number, since 3×129750523681003 (a number of 40 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1044599890 + ... + 1044612310.

Almost surely, 212975052368100 is an apocalyptic number.

12975052368100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12975052368100 is the 3602090-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12975052368100

12975052368100 is an abundant number, since it is smaller than the sum of its proper divisors (16187529994541).

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

12975052368100 is an frugal number, since it uses more digits than its factorization.

12975052368100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24914 (or 12457 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 49.

Multiplying 12975052368100 by its sum of digits (49), we get a square (635777566036900 = 252146302).

The spelling of 12975052368100 in words is "twelve trillion, nine hundred seventy-five billion, fifty-two million, three hundred sixty-eight thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 29 50 58 100 116 145 290 580 725 841 1450 1682 2900 3364 4205 8410 12421 16820 21025 24842 42050 49684 62105 84100 124210 248420 310525 360209 621050 720418 1242100 1440836 1801045 3602090 7204180 9005225 10446061 18010450 20892122 36020900 41784244 52230305 104460610 154281241 208921220 261151525 308562482 522303050 617124964 771406205 1044606100 1542812410 3085624820 3857031025 4474155989 7714062050 8948311978 15428124100 17896623956 22370779945 44741559890 89483119780 111853899725 129750523681 223707799450 259501047362 447415598900 519002094724 648752618405 1297505236810 2595010473620 3243763092025 6487526184050 12975052368100