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10231812 = 2233211449
BaseRepresentation
bin100111000010…
…000000000100
3201020211102000
4213002000010
510104404222
61003145300
7152653233
oct47020004
921224360
1010231812
115859348
123515230
132173236
141504b1a
15d719ac
hex9c2004

10231812 has 48 divisors (see below), whose sum is σ = 26712000. Its totient is φ = 3386880.

The previous prime is 10231801. The next prime is 10231813. The reversal of 10231812 is 21813201.

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

It is not an unprimeable number, because it can be changed into a prime (10231813) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22564 + ... + 23012.

It is an arithmetic number, because the mean of its divisors is an integer number (556500).

Almost surely, 210231812 is an apocalyptic number.

10231812 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 10231812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13356000).

10231812 is an abundant number, since it is smaller than the sum of its proper divisors (16480188).

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

10231812 is a wasteful number, since it uses less digits than its factorization.

10231812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 673 (or 665 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 10231812 is about 3198.7203691476. The cubic root of 10231812 is about 217.0955145932.

The spelling of 10231812 in words is "ten million, two hundred thirty-one thousand, eight hundred twelve".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 108 211 422 449 633 844 898 1266 1347 1796 1899 2532 2694 3798 4041 5388 5697 7596 8082 11394 12123 16164 22788 24246 48492 94739 189478 284217 378956 568434 852651 1136868 1705302 2557953 3410604 5115906 10231812