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11311210232 = 237201985897
BaseRepresentation
bin10101000100011001…
…10101111011111000
31002012022001000102022
422202030311323320
5141131132211412
65110222254012
7550205462210
oct124214657370
932168030368
1011311210232
114884979733
122238127308
1310b354bb0a
14794361240
15463064a72
hex2a2335ef8

11311210232 has 16 divisors (see below), whose sum is σ = 24238307760. Its totient is φ = 4847661504.

The previous prime is 11311210217. The next prime is 11311210237. The reversal of 11311210232 is 23201211311.

It is a self number, because there is not a number n which added to its sum of digits gives 11311210232.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11311210237) 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, 100992893 + ... + 100993004.

It is an arithmetic number, because the mean of its divisors is an integer number (1514894235).

Almost surely, 211311210232 is an apocalyptic number.

It is an amenable number.

11311210232 is an abundant number, since it is smaller than the sum of its proper divisors (12927097528).

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

11311210232 is a wasteful number, since it uses less digits than its factorization.

11311210232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201985910 (or 201985906 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 11311210232 its reverse (23201211311), we get a palindrome (34512421543).

The spelling of 11311210232 in words is "eleven billion, three hundred eleven million, two hundred ten thousand, two hundred thirty-two".

Divisors: 1 2 4 7 8 14 28 56 201985897 403971794 807943588 1413901279 1615887176 2827802558 5655605116 11311210232