Search a number
-
+
30211201201211 = 57780752285973
BaseRepresentation
bin1101101111010000101111…
…11010100111010000111011
310221222011101120000102101122
412313220113322213100323
512424440020001414321
6144130500105535455
76235454505105422
oct667502772472073
9127864346012348
1030211201201211
119698553523538
12347b1721a458b
1313b1b9a270a24
14766330d542b9
15375ce17d28ab
hex1b7a17ea743b

30211201201211 has 4 divisors (see below), whose sum is σ = 30211254064992. Its totient is φ = 30211148337432.

The previous prime is 30211201201201. The next prime is 30211201201283. The reversal of 30211201201211 is 11210210211203.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 30211201201211 - 230 = 30210127459387 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30211201201211.

It is not an unprimeable number, because it can be changed into a prime (30211201201201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25565180 + ... + 26720793.

It is an arithmetic number, because the mean of its divisors is an integer number (7552813516248).

Almost surely, 230211201201211 is an apocalyptic number.

30211201201211 is a deficient number, since it is larger than the sum of its proper divisors (52863781).

30211201201211 is an equidigital number, since it uses as much as digits as its factorization.

30211201201211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52863780.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 30211201201211 its reverse (11210210211203), we get a palindrome (41421411412414).

The spelling of 30211201201211 in words is "thirty trillion, two hundred eleven billion, two hundred one million, two hundred one thousand, two hundred eleven".

Divisors: 1 577807 52285973 30211201201211