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1030223412 = 2232374317987
BaseRepresentation
bin111101011001111…
…111011000110100
32122210112202211200
4331121333120310
54102214122122
6250121132500
734346516541
oct7531773064
92583482750
101030223412
11489597109
1224902a130
1313558ca6a
149ab77bc8
15606a15ac
hex3d67f634

1030223412 has 72 divisors (see below), whose sum is σ = 2736910176. Its totient is φ = 326337984.

The previous prime is 1030223401. The next prime is 1030223413. The reversal of 1030223412 is 2143220301.

1030223412 is a `hidden beast` number, since 1 + 0 + 30 + 223 + 412 = 666.

It is a super-2 number, since 2×10302234122 = 2122720557265843488, which 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 not an unprimeable number, because it can be changed into a prime (1030223413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 48283 + ... + 66269.

Almost surely, 21030223412 is an apocalyptic number.

1030223412 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 1030223412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1368455088).

1030223412 is an abundant number, since it is smaller than the sum of its proper divisors (1706686764).

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

1030223412 is a wasteful number, since it uses less digits than its factorization.

1030223412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18077 (or 18072 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1030223412 is about 32097.0935132762. The cubic root of 1030223412 is about 1009.9746462936.

Adding to 1030223412 its reverse (2143220301), we get a palindrome (3173443713).

The spelling of 1030223412 in words is "one billion, thirty million, two hundred twenty-three thousand, four hundred twelve".

Divisors: 1 2 3 4 6 9 12 18 36 37 43 74 86 111 129 148 172 222 258 333 387 444 516 666 774 1332 1548 1591 3182 4773 6364 9546 14319 17987 19092 28638 35974 53961 57276 71948 107922 161883 215844 323766 647532 665519 773441 1331038 1546882 1996557 2320323 2662076 3093764 3993114 4640646 5989671 6960969 7986228 9281292 11979342 13921938 23958684 27843876 28617317 57234634 85851951 114469268 171703902 257555853 343407804 515111706 1030223412