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10143012 = 22311431787
BaseRepresentation
bin100110101100…
…010100100100
3201002022121010
4212230110210
510044034022
61001222220
7152133315
oct46542444
921068533
1010143012
1157a8660
123491970
1321419a9
1414c060c
15d5550c
hex9ac524

10143012 has 48 divisors (see below), whose sum is σ = 26433792. Its totient is φ = 3000480.

The previous prime is 10142963. The next prime is 10143013. The reversal of 10143012 is 21034101.

It is a happy number.

It is a super-3 number, since 3×101430123 (a number of 22 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (10143013) 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, 4783 + ... + 6569.

It is an arithmetic number, because the mean of its divisors is an integer number (550704).

Almost surely, 210143012 is an apocalyptic number.

10143012 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 10143012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13216896).

10143012 is an abundant number, since it is smaller than the sum of its proper divisors (16290780).

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

10143012 is a wasteful number, since it uses less digits than its factorization.

10143012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1848 (or 1846 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 10143012 is about 3184.8095704453. The cubic root of 10143012 is about 216.4656449780.

Adding to 10143012 its reverse (21034101), we get a palindrome (31177113).

The spelling of 10143012 in words is "ten million, one hundred forty-three thousand, twelve".

Divisors: 1 2 3 4 6 11 12 22 33 43 44 66 86 129 132 172 258 473 516 946 1419 1787 1892 2838 3574 5361 5676 7148 10722 19657 21444 39314 58971 76841 78628 117942 153682 230523 235884 307364 461046 845251 922092 1690502 2535753 3381004 5071506 10143012