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1212200230 = 25121220023
BaseRepresentation
bin100100001000000…
…1011010100100110
310010110222011002211
41020100023110212
54440310401410
6320141354034
742016350313
oct11020132446
93113864084
101212200230
11572289a7a
12299b6891a
131641a6657
14b6dc7d0a
157164a68a
hex4840b526

1212200230 has 8 divisors (see below), whose sum is σ = 2181960432. Its totient is φ = 484880088.

The previous prime is 1212200201. The next prime is 1212200237. The reversal of 1212200230 is 320022121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×12122002302 = 2938858795224105800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1212200230.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212200237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60610002 + ... + 60610021.

It is an arithmetic number, because the mean of its divisors is an integer number (272745054).

Almost surely, 21212200230 is an apocalyptic number.

1212200230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1212200230 is a deficient number, since it is larger than the sum of its proper divisors (969760202).

1212200230 is a wasteful number, since it uses less digits than its factorization.

1212200230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121220030.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 1212200230 is about 34816.6659805329. The cubic root of 1212200230 is about 1066.2477327289.

Adding to 1212200230 its reverse (320022121), we get a palindrome (1532222351).

The spelling of 1212200230 in words is "one billion, two hundred twelve million, two hundred thousand, two hundred thirty".

Divisors: 1 2 5 10 121220023 242440046 606100115 1212200230