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30120001210 = 251323199223227
BaseRepresentation
bin11100000011010010…
…101011111010111010
32212202010002121002101
4130003102223322322
5443141210014320
621500440054014
72114254533415
oct340322537272
985663077071
1030120001210
1111856a56792
125a0716430a
132ac01bc730
14165a364b7c
15bb442ec0a
hex7034abeba

30120001210 has 128 divisors (see below), whose sum is σ = 61776691200. Its totient is φ = 10490363136.

The previous prime is 30120001207. The next prime is 30120001211. The reversal of 30120001210 is 1210002103.

It is a super-3 number, since 3×301200012103 (a number of 32 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (30120001211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 132687117 + ... + 132687343.

It is an arithmetic number, because the mean of its divisors is an integer number (482630400).

Almost surely, 230120001210 is an apocalyptic number.

30120001210 is an abundant number, since it is smaller than the sum of its proper divisors (31656689990).

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

30120001210 is a wasteful number, since it uses less digits than its factorization.

30120001210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 692.

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 30120001210 its reverse (1210002103), we get a palindrome (31330003313).

The spelling of 30120001210 in words is "thirty billion, one hundred twenty million, one thousand, two hundred ten".

Divisors: 1 2 5 10 13 23 26 46 65 115 130 199 223 227 230 299 398 446 454 598 995 1115 1135 1495 1990 2230 2270 2587 2899 2951 2990 4577 5129 5174 5221 5798 5902 9154 10258 10442 12935 14495 14755 22885 25645 25870 26105 28990 29510 44377 45173 45770 50621 51290 52210 59501 66677 67873 88754 90346 101242 119002 133354 135746 221885 225865 253105 297505 333385 339365 443770 451730 506210 576901 587249 595010 658073 666770 678730 1020671 1038979 1153802 1164283 1174498 1316146 2041342 2077958 2328566 2884505 2936245 3290365 5103355 5194895 5769010 5821415 5872490 6580730 10073579 10206710 10389790 11642830 13268723 13506727 15135679 20147158 26537446 27013454 30271358 50367895 66343615 67533635 75678395 100735790 130956527 132687230 135067270 151356790 231692317 261913054 463384634 654782635 1158461585 1309565270 2316923170 3012000121 6024000242 15060000605 30120001210