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10312222312 = 237831122157
BaseRepresentation
bin10011001101010100…
…00000011001101000
3222121200021011121201
421212222000121220
5132104412103222
64423134413544
7513355305040
oct114652003150
928550234551
1010312222312
114411a87287
121bb96612b4
13c845a74c2
146db7d8720
154054d3427
hex266a80668

10312222312 has 32 divisors (see below), whose sum is σ = 22101275520. Its totient is φ = 4418792640.

The previous prime is 10312222309. The next prime is 10312222357. The reversal of 10312222312 is 21322221301.

It is a super-2 number, since 2×103122223122 (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10312222312.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 454338 + ... + 476494.

It is an arithmetic number, because the mean of its divisors is an integer number (690664860).

Almost surely, 210312222312 is an apocalyptic number.

It is an amenable number.

10312222312 is an abundant number, since it is smaller than the sum of its proper divisors (11789053208).

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

10312222312 is a wasteful number, since it uses less digits than its factorization.

10312222312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30481 (or 30477 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 10312222312 its reverse (21322221301), we get a palindrome (31634443613).

The spelling of 10312222312 in words is "ten billion, three hundred twelve million, two hundred twenty-two thousand, three hundred twelve".

Divisors: 1 2 4 7 8 14 28 56 8311 16622 22157 33244 44314 58177 66488 88628 116354 155099 177256 232708 310198 465416 620396 1240792 184146827 368293654 736587308 1289027789 1473174616 2578055578 5156111156 10312222312