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123232201000 = 23531726532
BaseRepresentation
bin111001011000100110…
…1100010100100101000
3102210002021010102201121
41302301031202210220
54004334420413000
6132340113425024
711621544265636
oct1626115424450
9383067112647
10123232201000
1148298401617
121ba7226b174
13b80ba1b93c
145d70714356
153313b14b1a
hex1cb1362928

123232201000 has 144 divisors (see below), whose sum is σ = 306793517940. Its totient is φ = 46322252800.

The previous prime is 123232200961. The next prime is 123232201031. The reversal of 123232201000 is 102232321.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 18 ways, for example, as 38386997476 + 84845203524 = 195926^2 + 291282^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 188716674 + ... + 188717326.

Almost surely, 2123232201000 is an apocalyptic number.

123232201000 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 123232201000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (153396758970).

123232201000 is an abundant number, since it is smaller than the sum of its proper divisors (183561316940).

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

123232201000 is an frugal number, since it uses more digits than its factorization.

123232201000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1361 (or 677 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 123232201000 its reverse (102232321), we get a palindrome (123334433321).

The spelling of 123232201000 in words is "one hundred twenty-three billion, two hundred thirty-two million, two hundred one thousand".

Divisors: 1 2 4 5 8 10 17 20 25 34 40 50 68 85 100 125 136 170 200 250 289 340 425 500 578 653 680 850 1000 1156 1306 1445 1700 2125 2312 2612 2890 3265 3400 4250 5224 5780 6530 7225 8500 11101 11560 13060 14450 16325 17000 22202 26120 28900 32650 36125 44404 55505 57800 65300 72250 81625 88808 111010 130600 144500 163250 188717 222020 277525 289000 326500 377434 426409 444040 555050 653000 754868 852818 943585 1110100 1387625 1509736 1705636 1887170 2132045 2220200 2775250 3411272 3774340 4264090 4717925 5550500 7248953 7548680 8528180 9435850 10660225 11101000 14497906 17056360 18871700 21320450 23589625 28995812 36244765 37743400 42640900 47179250 53301125 57991624 72489530 85281800 94358500 106602250 123232201 144979060 181223825 188717000 213204500 246464402 289958120 362447650 426409000 492928804 616161005 724895300 906119125 985857608 1232322010 1449790600 1812238250 2464644020 3080805025 3624476500 4929288040 6161610050 7248953000 12323220100 15404025125 24646440200 30808050250 61616100500 123232201000