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1212050030 = 25437014021
BaseRepresentation
bin100100000111110…
…0110101001101110
310010110200112001212
41020033212221232
54440241100110
6320134234422
742015153362
oct11017465156
93113615055
101212050030
11572197144
12299ab5a12
13164153189
14b6d892a2
157161ae05
hex483e6a6e

1212050030 has 32 divisors (see below), whose sum is σ = 2236167648. Its totient is φ = 472752000.

The previous prime is 1212049999. The next prime is 1212050083. The reversal of 1212050030 is 300502121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1212049987 and 1212050014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 299420 + ... + 303440.

It is an arithmetic number, because the mean of its divisors is an integer number (69880239).

Almost surely, 21212050030 is an apocalyptic number.

1212050030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1212050030 is a deficient number, since it is larger than the sum of its proper divisors (1024117618).

1212050030 is a wasteful number, since it uses less digits than its factorization.

1212050030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4772.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 1212050030 is about 34814.5089007442. The cubic root of 1212050030 is about 1066.2036924182.

Adding to 1212050030 its reverse (300502121), we get a palindrome (1512552151).

The spelling of 1212050030 in words is "one billion, two hundred twelve million, fifty thousand, thirty".

Divisors: 1 2 5 10 43 86 215 430 701 1402 3505 4021 7010 8042 20105 30143 40210 60286 150715 172903 301430 345806 864515 1729030 2818721 5637442 14093605 28187210 121205003 242410006 606025015 1212050030