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2020001212100 = 2252148119516991
BaseRepresentation
bin11101011001010001011…
…101000110011011000100
321011002222100122200220102
4131121101131012123010
5231043430302241400
64143550432223232
7265640341000544
oct35312135063304
97132870580812
102020001212100
11709750028543
122875a639ab18
13118640274911
146daa8dad324
1537828dd79d5
hex1d6517466c4

2020001212100 has 72 divisors (see below), whose sum is σ = 4389238404096. Its totient is φ = 806925600000.

The previous prime is 2020001212093. The next prime is 2020001212129. The reversal of 2020001212100 is 12121000202.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 288939605 + ... + 288946595.

Almost surely, 22020001212100 is an apocalyptic number.

2020001212100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2020001212100 is an abundant number, since it is smaller than the sum of its proper divisors (2369237191996).

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

2020001212100 is a wasteful number, since it uses less digits than its factorization.

2020001212100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10437 (or 10430 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 2020001212100 its reverse (12121000202), we get a palindrome (2032122212302).

The spelling of 2020001212100 in words is "two trillion, twenty billion, one million, two hundred twelve thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 100 1481 1951 2962 3902 5924 6991 7405 7804 9755 13982 14810 19510 27964 29620 34955 37025 39020 48775 69910 74050 97550 139820 148100 174775 195100 349550 699100 2889431 5778862 10353671 11557724 13639441 14447155 20707342 27278882 28894310 41414684 51768355 54557764 57788620 68197205 72235775 103536710 136394410 144471550 207073420 258841775 272788820 288943100 340986025 517683550 681972050 1035367100 1363944100 20200012121 40400024242 80800048484 101000060605 202000121210 404000242420 505000303025 1010000606050 2020001212100