Search a number
-
+
30201012011220 = 22354314978562541
BaseRepresentation
bin1101101110111101110001…
…00101111100000011010100
310221221012002110020221101120
412313132320211330003110
512424303133033324340
6144122053044123540
76234644142321231
oct667367045740324
9127835073227346
1030201012011220
1196941a4a3a266
1234791a99965b0
1313b0c3531271b
14765a45a24788
153758e70034d0
hex1b77b897c0d4

30201012011220 has 96 divisors (see below), whose sum is σ = 87110146569600. Its totient is φ = 7813515978240.

The previous prime is 30201012011171. The next prime is 30201012011231. The reversal of 30201012011220 is 2211021010203.

It is a super-2 number, since 2×302010120112202 (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 30201012011220.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38896851 + ... + 39665690.

It is an arithmetic number, because the mean of its divisors is an integer number (907397360100).

Almost surely, 230201012011220 is an apocalyptic number.

30201012011220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30201012011220 is an abundant number, since it is smaller than the sum of its proper divisors (56909134558380).

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

30201012011220 is a wasteful number, since it uses less digits than its factorization.

30201012011220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78562745 (or 78562743 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 30201012011220 its reverse (2211021010203), we get a palindrome (32412033021423).

The spelling of 30201012011220 in words is "thirty trillion, two hundred one billion, twelve million, eleven thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 43 60 86 129 149 172 215 258 298 430 447 516 596 645 745 860 894 1290 1490 1788 2235 2580 2980 4470 6407 8940 12814 19221 25628 32035 38442 64070 76884 96105 128140 192210 384420 78562541 157125082 235687623 314250164 392812705 471375246 785625410 942750492 1178438115 1571250820 2356876230 3378189263 4713752460 6756378526 10134567789 11705818609 13512757052 16890946315 20269135578 23411637218 33781892630 35117455827 40538271156 46823274436 50672838945 58529093045 67563785260 70234911654 101345677890 117058186090 140469823308 175587279135 202691355780 234116372180 351174558270 503350200187 702349116540 1006700400374 1510050600561 2013400800748 2516751000935 3020101201122 5033502001870 6040202402244 7550253002805 10067004003740 15100506005610 30201012011220