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1213202330210 = 25139332325617
BaseRepresentation
bin10001101001111000011…
…111100111001001100010
311021222111011012222022102
4101221320133213021202
5124334114244031320
62325200520210402
7153436166441453
oct21517037471142
94258434188272
101213202330210
114285750a61a2
12177163009a02
138a53487b510
1442a0dac112a
1521858ca7175
hex11a787e7262

1213202330210 has 16 divisors (see below), whose sum is σ = 2351746055736. Its totient is φ = 447951629568.

The previous prime is 1213202330141. The next prime is 1213202330227. The reversal of 1213202330210 is 120332023121.

It can be written as a sum of positive squares in 4 ways, for example, as 654689738641 + 558512591569 = 809129^2 + 747337^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4666162679 + ... + 4666162938.

Almost surely, 21213202330210 is an apocalyptic number.

1213202330210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1213202330210 is a deficient number, since it is larger than the sum of its proper divisors (1138543725526).

1213202330210 is a wasteful number, since it uses less digits than its factorization.

1213202330210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9332325637.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 1213202330210 its reverse (120332023121), we get a palindrome (1333534353331).

The spelling of 1213202330210 in words is "one trillion, two hundred thirteen billion, two hundred two million, three hundred thirty thousand, two hundred ten".

Divisors: 1 2 5 10 13 26 65 130 9332325617 18664651234 46661628085 93323256170 121320233021 242640466042 606601165105 1213202330210