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12030231000 = 233539741341
BaseRepresentation
bin10110011010000111…
…01100000111011000
31011001102000001111010
423031003230013120
5144114214343000
65305425333520
7604056163524
oct131503540730
934042001433
1012030231000
11511382a677
1223b8a972a0
1311994ba9a8
14821a4ad84
154a6242d50
hex2cd0ec1d8

12030231000 has 128 divisors (see below), whose sum is σ = 37922189760. Its totient is φ = 3174912000.

The previous prime is 12030230981. The next prime is 12030231001. The reversal of 12030231000 is 13203021.

It is a happy number.

It is a super-2 number, since 2×120302310002 (a number of 21 digits) contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12030231001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 270330 + ... + 311670.

Almost surely, 212030231000 is an apocalyptic number.

12030231000 is a gapful number since it is divisible by the number (10) 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 12030231000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18961094880).

12030231000 is an abundant number, since it is smaller than the sum of its proper divisors (25891958760).

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

12030231000 is a wasteful number, since it uses less digits than its factorization.

12030231000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41462 (or 41448 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

Adding to 12030231000 its reverse (13203021), we get a palindrome (12043434021).

The spelling of 12030231000 in words is "twelve billion, thirty million, two hundred thirty-one thousand".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 25 30 40 50 60 75 97 100 120 125 150 194 200 250 291 300 375 388 485 500 582 600 750 776 970 1000 1164 1455 1500 1940 2328 2425 2910 3000 3880 4850 5820 7275 9700 11640 12125 14550 19400 24250 29100 36375 41341 48500 58200 72750 82682 97000 124023 145500 165364 206705 248046 291000 330728 413410 496092 620115 826820 992184 1033525 1240230 1653640 2067050 2480460 3100575 4010077 4134100 4960920 5167625 6201150 8020154 8268200 10335250 12030231 12402300 15502875 16040308 20050385 20670500 24060462 24804600 31005750 32080616 40100770 41341000 48120924 60151155 62011500 80201540 96241848 100251925 120302310 124023000 160403080 200503850 240604620 300755775 401007700 481209240 501259625 601511550 802015400 1002519250 1203023100 1503778875 2005038500 2406046200 3007557750 4010077000 6015115500 12030231000