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1212103010300 = 2252713433097631
BaseRepresentation
bin10001101000110110111…
…110000010011111111100
311021212122112122201220012
4101220312332002133330
5124324341332312200
62324455450042352
7153400020410240
oct21506676023774
94255575581805
101212103010300
11428060605946
12176ab6a193b8
138a3baba8270
1442947abc420
15217e2507a35
hex11a36f827fc

1212103010300 has 144 divisors (see below), whose sum is σ = 3312533317632. Its totient is φ = 374689324800.

The previous prime is 1212103010291. The next prime is 1212103010329. The reversal of 1212103010300 is 30103012121.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1157516 + ... + 1940115.

Almost surely, 21212103010300 is an apocalyptic number.

1212103010300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1212103010300 is an abundant number, since it is smaller than the sum of its proper divisors (2100430307332).

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

1212103010300 is a wasteful number, since it uses less digits than its factorization.

1212103010300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3097708 (or 3097701 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 1212103010300 its reverse (30103012121), we get a palindrome (1242206022421).

The spelling of 1212103010300 in words is "one trillion, two hundred twelve billion, one hundred three million, ten thousand, three hundred".

Divisors: 1 2 4 5 7 10 13 14 20 25 26 28 35 43 50 52 65 70 86 91 100 130 140 172 175 182 215 260 301 325 350 364 430 455 559 602 650 700 860 910 1075 1118 1204 1300 1505 1820 2150 2236 2275 2795 3010 3913 4300 4550 5590 6020 7525 7826 9100 11180 13975 15050 15652 19565 27950 30100 39130 55900 78260 97825 195650 391300 3097631 6195262 12390524 15488155 21683417 30976310 40269203 43366834 61952620 77440775 80538406 86733668 108417085 133198133 154881550 161076812 201346015 216834170 266396266 281884421 309763100 402692030 433668340 532792532 542085425 563768842 665990665 805384060 932386931 1006730075 1084170850 1127537684 1331981330 1409422105 1731575729 1864773862 2013460150 2168341700 2663962660 2818844210 3329953325 3463151458 3729547724 4026920300 4661934655 5637688420 6659906650 6926302916 7047110525 8657878645 9323869310 12121030103 13319813300 14094221050 17315757290 18647738620 23309673275 24242060206 28188442100 34631514580 43289393225 46619346550 48484120412 60605150515 86578786450 93238693100 121210301030 173157572900 242420602060 303025752575 606051505150 1212103010300