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122001010000 = 245417717653
BaseRepresentation
bin111000110011111010…
…0111010110101010000
3102122220110102110011221
41301213310322311100
53444324224310000
6132014013014424
711546204321542
oct1614764726520
9378813373157
10122001010000
11478164315a1
121b789a84414
13b67392635c
145c94dc5692
1532909b761a
hex1c67d3ad50

122001010000 has 100 divisors (see below), whose sum is σ = 312752177892. Its totient is φ = 45929728000.

The previous prime is 122001009947. The next prime is 122001010009. The reversal of 122001010000 is 10100221.

It can be written as a sum of positive squares in 10 ways, for example, as 73458345024 + 48542664976 = 271032^2 + 220324^2 .

It is a tau number, because it is divible by the number of its divisors (100).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122001010009) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 188827 + ... + 528826.

Almost surely, 2122001010000 is an apocalyptic number.

122001010000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122001010000 is an abundant number, since it is smaller than the sum of its proper divisors (190751167892).

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

122001010000 is an equidigital number, since it uses as much as digits as its factorization.

122001010000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 717698 (or 717677 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 7.

Adding to 122001010000 its reverse (10100221), we get a palindrome (122011110221).

The spelling of 122001010000 in words is "one hundred twenty-two billion, one million, ten thousand".

Divisors: 1 2 4 5 8 10 16 17 20 25 34 40 50 68 80 85 100 125 136 170 200 250 272 340 400 425 500 625 680 850 1000 1250 1360 1700 2000 2125 2500 3400 4250 5000 6800 8500 10000 10625 17000 21250 34000 42500 85000 170000 717653 1435306 2870612 3588265 5741224 7176530 11482448 12200101 14353060 17941325 24400202 28706120 35882650 48800404 57412240 61000505 71765300 89706625 97600808 122001010 143530600 179413250 195201616 244002020 287061200 305002525 358826500 448533125 488004040 610005050 717653000 897066250 976008080 1220010100 1435306000 1525012625 1794132500 2440020200 3050025250 3588265000 4880040400 6100050500 7176530000 7625063125 12200101000 15250126250 24400202000 30500252500 61000505000 122001010000