Search a number
-
+
20011230210 = 235667041007
BaseRepresentation
bin10010101000110000…
…110010010000000010
31220122121122211012110
4102220300302100002
5311440333331320
613105410040150
71305616436016
oct225060622002
956577584173
1020011230210
1185398aa494
123a65879056
131b6bb0a42a
14d7b9aa546
157c1c385e0
hex4a8c32402

20011230210 has 16 divisors (see below), whose sum is σ = 48026952576. Its totient is φ = 5336328048.

The previous prime is 20011230199. The next prime is 20011230227. The reversal of 20011230210 is 1203211002.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 333520474 + ... + 333520533.

It is an arithmetic number, because the mean of its divisors is an integer number (3001684536).

Almost surely, 220011230210 is an apocalyptic number.

20011230210 is an abundant number, since it is smaller than the sum of its proper divisors (28015722366).

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

20011230210 is a wasteful number, since it uses less digits than its factorization.

20011230210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 667041017.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 20011230210 its reverse (1203211002), we get a palindrome (21214441212).

The spelling of 20011230210 in words is "twenty billion, eleven million, two hundred thirty thousand, two hundred ten".

Divisors: 1 2 3 5 6 10 15 30 667041007 1334082014 2001123021 3335205035 4002246042 6670410070 10005615105 20011230210