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12301030020 = 2235318777541
BaseRepresentation
bin10110111010011001…
…01101001010000100
31011202021120001220110
423131030231022010
5200143030430040
65352341433020
7613555013166
oct133514551204
934667501813
1012301030020
115242679a14
12247370b770
1312106333b6
148499bc936
154bedd4980
hex2dd32d284

12301030020 has 96 divisors (see below), whose sum is σ = 35599205376. Its totient is φ = 3170419200.

The previous prime is 12301030019. The next prime is 12301030033. The reversal of 12301030020 is 2003010321.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 12301029978 and 12301030005.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1627450 + ... + 1634990.

It is an arithmetic number, because the mean of its divisors is an integer number (370825056).

Almost surely, 212301030020 is an apocalyptic number.

12301030020 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 12301030020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17799602688).

12301030020 is an abundant number, since it is smaller than the sum of its proper divisors (23298175356).

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

12301030020 is a wasteful number, since it uses less digits than its factorization.

12301030020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8461 (or 8459 counting only the distinct ones).

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

Adding to 12301030020 its reverse (2003010321), we get a palindrome (14304040341).

The spelling of 12301030020 in words is "twelve billion, three hundred one million, thirty thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 31 60 62 93 124 155 186 310 372 465 620 877 930 1754 1860 2631 3508 4385 5262 7541 8770 10524 13155 15082 17540 22623 26310 27187 30164 37705 45246 52620 54374 75410 81561 90492 108748 113115 135935 150820 163122 226230 233771 271870 326244 407805 452460 467542 543740 701313 815610 935084 1168855 1402626 1631220 2337710 2805252 3506565 4675420 6613457 7013130 13226914 14026260 19840371 26453828 33067285 39680742 66134570 79361484 99201855 132269140 198403710 205017167 396807420 410034334 615051501 820068668 1025085835 1230103002 2050171670 2460206004 3075257505 4100343340 6150515010 12301030020