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10312110220 = 225515605511
BaseRepresentation
bin10011001101010011…
…00101000010001100
3222121200001110212011
421212221211002030
5132104400011340
64423132151004
7513354330166
oct114651450214
928550043764
1010312110220
114411a10045
121bb9608464
13c84568489
146db7a9936
154054b00ea
hex266a6508c

10312110220 has 12 divisors (see below), whose sum is σ = 21655431504. Its totient is φ = 4124844080.

The previous prime is 10312110119. The next prime is 10312110229. The reversal of 10312110220 is 2201121301.

It is a self number, because there is not a number n which added to its sum of digits gives 10312110220.

It is not an unprimeable number, because it can be changed into a prime (10312110229) 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, 257802736 + ... + 257802775.

It is an arithmetic number, because the mean of its divisors is an integer number (1804619292).

Almost surely, 210312110220 is an apocalyptic number.

10312110220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10312110220 is an abundant number, since it is smaller than the sum of its proper divisors (11343321284).

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

10312110220 is a wasteful number, since it uses less digits than its factorization.

10312110220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 515605520 (or 515605518 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 10312110220 its reverse (2201121301), we get a palindrome (12513231521).

The spelling of 10312110220 in words is "ten billion, three hundred twelve million, one hundred ten thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 515605511 1031211022 2062422044 2578027555 5156055110 10312110220