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212424211230 = 23571191958533
BaseRepresentation
bin1100010111010101111…
…0000011101100011110
3202022022012122000020220
43011311132003230132
511440021044224410
6241330352022210
721230033001120
oct3056536035436
9668265560226
10212424211230
11820a7a24a70
1235204531966
131705432145a
14a3d21a7210
1557d408c070
hex3175783b1e

212424211230 has 64 divisors (see below), whose sum is σ = 635617387008. Its totient is φ = 44140095360.

The previous prime is 212424211201. The next prime is 212424211231. The reversal of 212424211230 is 32112424212.

It is a super-2 number, since 2×2124242112302 (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 212424211230.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212424211231) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 45976957 + ... + 45981576.

It is an arithmetic number, because the mean of its divisors is an integer number (9931521672).

Almost surely, 2212424211230 is an apocalyptic number.

212424211230 is an abundant number, since it is smaller than the sum of its proper divisors (423193175778).

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

212424211230 is a wasteful number, since it uses less digits than its factorization.

212424211230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91958561.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 212424211230 its reverse (32112424212), we get a palindrome (244536635442).

The spelling of 212424211230 in words is "two hundred twelve billion, four hundred twenty-four million, two hundred eleven thousand, two hundred thirty".

Divisors: 1 2 3 5 6 7 10 11 14 15 21 22 30 33 35 42 55 66 70 77 105 110 154 165 210 231 330 385 462 770 1155 2310 91958533 183917066 275875599 459792665 551751198 643709731 919585330 1011543863 1287419462 1379377995 1931129193 2023087726 2758755990 3034631589 3218548655 3862258386 5057719315 6069263178 6437097310 7080807041 9655645965 10115438630 14161614082 15173157945 19311291930 21242421123 30346315890 35404035205 42484842246 70808070410 106212105615 212424211230