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1012010220 = 2233513144161
BaseRepresentation
bin111100010100100…
…000110011101100
32121112021110001000
4330110200303230
54033033311340
6244230520300
734035642054
oct7424406354
92545243030
101012010220
1147a287291
12242b06090
13131883a20
1498596564
155dca4d30
hex3c520cec

1012010220 has 96 divisors (see below), whose sum is σ = 3390690240. Its totient is φ = 249108480.

The previous prime is 1012010213. The next prime is 1012010261. The reversal of 1012010220 is 220102101.

It is a Harshad number since it is a multiple of its sum of digits (9).

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, 65061 + ... + 79100.

It is an arithmetic number, because the mean of its divisors is an integer number (35319690).

Almost surely, 21012010220 is an apocalyptic number.

1012010220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1012010220 is an abundant number, since it is smaller than the sum of its proper divisors (2378680020).

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

1012010220 is a wasteful number, since it uses less digits than its factorization.

1012010220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144192 (or 144184 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 1012010220 is about 31812.1080722419. The cubic root of 1012010220 is about 1003.9874854924.

Adding to 1012010220 its reverse (220102101), we get a palindrome (1232112321).

The spelling of 1012010220 in words is "one billion, twelve million, ten thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 9 10 12 13 15 18 20 26 27 30 36 39 45 52 54 60 65 78 90 108 117 130 135 156 180 195 234 260 270 351 390 468 540 585 702 780 1170 1404 1755 2340 3510 7020 144161 288322 432483 576644 720805 864966 1297449 1441610 1729932 1874093 2162415 2594898 2883220 3748186 3892347 4324830 5189796 5622279 6487245 7496372 7784694 8649660 9370465 11244558 12974490 15569388 16866837 18740930 19461735 22489116 25948980 28111395 33733674 37481860 38923470 50600511 56222790 67467348 77846940 84334185 101201022 112445580 168668370 202402044 253002555 337336740 506005110 1012010220