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10201012201020 = 2235378923514967
BaseRepresentation
bin1001010001110001101110…
…1101010110011000111100
31100010012121002011002002110
42110130123231112120330
52314113133110413040
633410140314054020
72101666410016554
oct224343355263074
940105532132073
1010201012201020
1132832524a1893
12118903641a310
1358cc4a0971c4
14273a35816164
1512a5421a8980
hex9471bb5663c

10201012201020 has 96 divisors (see below), whose sum is σ = 29338147173888. Its totient is φ = 2646447351552.

The previous prime is 10201012200997. The next prime is 10201012201067. The reversal of 10201012201020 is 2010221010201.

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 = 10201012200987 and 10201012201005.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19551577 + ... + 20066543.

It is an arithmetic number, because the mean of its divisors is an integer number (305605699728).

Almost surely, 210201012201020 is an apocalyptic number.

10201012201020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10201012201020 is an abundant number, since it is smaller than the sum of its proper divisors (19137134972868).

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

10201012201020 is a wasteful number, since it uses less digits than its factorization.

10201012201020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 523939 (or 523937 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 10201012201020 its reverse (2010221010201), we get a palindrome (12211233211221).

The spelling of 10201012201020 in words is "ten trillion, two hundred one billion, twelve million, two hundred one thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 37 60 74 111 148 185 222 370 444 555 740 1110 2220 8923 17846 26769 35692 44615 53538 89230 107076 133845 178460 267690 330151 514967 535380 660302 990453 1029934 1320604 1544901 1650755 1980906 2059868 2574835 3089802 3301510 3961812 4952265 5149670 6179604 6603020 7724505 9904530 10299340 15449010 19053779 19809060 30898020 38107558 57161337 76215116 95268895 114322674 190537790 228645348 285806685 381075580 571613370 1143226740 4595050541 9190101082 13785151623 18380202164 22975252705 27570303246 45950505410 55140606492 68925758115 91901010820 137851516230 170016870017 275703032460 340033740034 510050610051 680067480068 850084350085 1020101220102 1700168700170 2040202440204 2550253050255 3400337400340 5100506100510 10201012201020