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11312220202 = 216187349423
BaseRepresentation
bin10101000100100001…
…01100100000101010
31002012100221022211121
422202100230200222
5141131412021302
65110300045454
7550220166553
oct124220544052
932170838747
1011312220202
1148854a9518
12223853388a
1310b381372a
1479454532a
154631b3e37
hex2a242c82a

11312220202 has 8 divisors (see below), whose sum is σ = 16969427136. Its totient is φ = 5655744492.

The previous prime is 11312220191. The next prime is 11312220221. The reversal of 11312220202 is 20202221311.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142338 + ... + 207085.

It is an arithmetic number, because the mean of its divisors is an integer number (2121178392).

Almost surely, 211312220202 is an apocalyptic number.

11312220202 is a deficient number, since it is larger than the sum of its proper divisors (5657206934).

11312220202 is a wasteful number, since it uses less digits than its factorization.

11312220202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365612.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 11312220202 its reverse (20202221311), we get a palindrome (31514441513).

The spelling of 11312220202 in words is "eleven billion, three hundred twelve million, two hundred twenty thousand, two hundred two".

Divisors: 1 2 16187 32374 349423 698846 5656110101 11312220202