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1210213021230 = 233519235908971
BaseRepresentation
bin10001100111000110010…
…100010011011000101110
311021200202211022100022000
4101213012110103120232
5124312004013134410
62323544133033130
7153302130644103
oct21470624233056
94250684270260
101210213021230
11427280778104
12176669a857a6
138a17946b235
1442808a9caaa
1521731625dc0
hex119c651362e

1210213021230 has 64 divisors (see below), whose sum is σ = 3397089196800. Its totient is φ = 305738025120.

The previous prime is 1210213021229. The next prime is 1210213021247. The reversal of 1210213021230 is 321203120121.

1210213021230 is a `hidden beast` number, since 1 + 210 + 213 + 0 + 212 + 30 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 117949356 + ... + 117959615.

It is an arithmetic number, because the mean of its divisors is an integer number (53079518700).

Almost surely, 21210213021230 is an apocalyptic number.

1210213021230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1210213021230 is an abundant number, since it is smaller than the sum of its proper divisors (2186876175570).

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

1210213021230 is a wasteful number, since it uses less digits than its factorization.

1210213021230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235909006 (or 235909000 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 1210213021230 its reverse (321203120121), we get a palindrome (1531416141351).

The spelling of 1210213021230 in words is "one trillion, two hundred ten billion, two hundred thirteen million, twenty-one thousand, two hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 19 27 30 38 45 54 57 90 95 114 135 171 190 270 285 342 513 570 855 1026 1710 2565 5130 235908971 471817942 707726913 1179544855 1415453826 2123180739 2359089710 3538634565 4246361478 4482270449 6369542217 7077269130 8964540898 10615903695 12739084434 13446811347 21231807390 22411352245 26893622694 31847711085 40340434041 44822704490 63695422170 67234056735 80680868082 121021302123 134468113470 201702170205 242042604246 403404340410 605106510615 1210213021230