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10313121312 = 2533131019091
BaseRepresentation
bin10011001101011010…
…11011111000100000
3222121201221211211000
421212231123320200
5132110124340222
64423205552000
7513366041034
oct114655337040
928551854730
1010313121312
11441254075a
121bb9a15600
13c84830760
146db9901c4
1540560e9ac
hex266b5be20

10313121312 has 192 divisors, whose sum is σ = 32718107520. Its totient is φ = 3141504000.

The previous prime is 10313121257. The next prime is 10313121341. The reversal of 10313121312 is 21312131301.

10313121312 is a `hidden beast` number, since 10 + 31 + 312 + 1 + 312 = 666.

10313121312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1129887 + ... + 1138977.

It is an arithmetic number, because the mean of its divisors is an integer number (170406810).

Almost surely, 210313121312 is an apocalyptic number.

10313121312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10313121312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16359053760).

10313121312 is an abundant number, since it is smaller than the sum of its proper divisors (22404986208).

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

10313121312 is a wasteful number, since it uses less digits than its factorization.

10313121312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9224 (or 9210 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 10313121312 its reverse (21312131301), we get a palindrome (31625252613).

The spelling of 10313121312 in words is "ten billion, three hundred thirteen million, one hundred twenty-one thousand, three hundred twelve".