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12310223310 = 23257111993493
BaseRepresentation
bin10110111011011111…
…10001100111001110
31011202220212010201200
423131233301213032
5200202404121220
65353310450330
7614026112610
oct133557614716
934686763650
1012310223310
115247888a80
1224768039a6
131212501a08
1484acd2db0
154c0aed890
hex2ddbf19ce

12310223310 has 192 divisors, whose sum is σ = 42004984320. Its totient is φ = 2423312640.

The previous prime is 12310223297. The next prime is 12310223353. The reversal of 12310223310 is 1332201321.

12310223310 is a `hidden beast` number, since 1 + 2 + 310 + 22 + 331 + 0 = 666.

It is a super-2 number, since 2×123102233102 (a number of 21 digits) contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 84924 + ... + 178416.

It is an arithmetic number, because the mean of its divisors is an integer number (218775960).

Almost surely, 212310223310 is an apocalyptic number.

12310223310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12310223310, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21002492160).

12310223310 is an abundant number, since it is smaller than the sum of its proper divisors (29694761010).

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

12310223310 is a wasteful number, since it uses less digits than its factorization.

12310223310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93543 (or 93540 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 12310223310 its reverse (1332201321), we get a palindrome (13642424631).

The spelling of 12310223310 in words is "twelve billion, three hundred ten million, two hundred twenty-three thousand, three hundred ten".