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21132310202 = 253754126437
BaseRepresentation
bin10011101011100101…
…010111011010111010
32000112202011120211122
4103223211113122322
5321234332411302
613412534425242
71345451446553
oct235345273272
960482146748
1021132310202
118a64702483
124119202222
131cba15bc83
14104683532a
1583a3853a2
hex4eb9576ba

21132310202 has 16 divisors (see below), whose sum is σ = 32302054152. Its totient is φ = 10365026880.

The previous prime is 21132310193. The next prime is 21132310217. The reversal of 21132310202 is 20201323112.

It can be written as a sum of positive squares in 4 ways, for example, as 19077410641 + 2054899561 = 138121^2 + 45331^2 .

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, 786128 + ... + 812564.

Almost surely, 221132310202 is an apocalyptic number.

21132310202 is a deficient number, since it is larger than the sum of its proper divisors (11169743950).

21132310202 is a wasteful number, since it uses less digits than its factorization.

21132310202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34033.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 21132310202 its reverse (20201323112), we get a palindrome (41333633314).

The spelling of 21132310202 in words is "twenty-one billion, one hundred thirty-two million, three hundred ten thousand, two hundred two".

Divisors: 1 2 53 106 7541 15082 26437 52874 399673 799346 1401161 2802322 199361417 398722834 10566155101 21132310202