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103201031220 = 22357376640993
BaseRepresentation
bin110000000011101000…
…0101100010000110100
3100212101020221120120120
41200013100230100310
53142323430444340
6115224312131540
710312263202020
oct1400720542064
9325336846516
10103201031220
113a849323251
1218001996bb0
139968a4c761
144dd0237380
152a4028d4d0
hex180742c434

103201031220 has 96 divisors (see below), whose sum is σ = 339168845568. Its totient is φ = 22951268352.

The previous prime is 103201031209. The next prime is 103201031231. The reversal of 103201031220 is 22130102301.

103201031220 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (103201031209) and next prime (103201031231).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 103201031220.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3304957 + ... + 3336036.

It is an arithmetic number, because the mean of its divisors is an integer number (3533008808).

Almost surely, 2103201031220 is an apocalyptic number.

103201031220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

103201031220 is an abundant number, since it is smaller than the sum of its proper divisors (235967814348).

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

103201031220 is a wasteful number, since it uses less digits than its factorization.

103201031220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6641049 (or 6641047 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 103201031220 its reverse (22130102301), we get a palindrome (125331133521).

The spelling of 103201031220 in words is "one hundred three billion, two hundred one million, thirty-one thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 37 42 60 70 74 84 105 111 140 148 185 210 222 259 370 420 444 518 555 740 777 1036 1110 1295 1554 2220 2590 3108 3885 5180 7770 15540 6640993 13281986 19922979 26563972 33204965 39845958 46486951 66409930 79691916 92973902 99614895 132819860 139460853 185947804 199229790 232434755 245716741 278921706 398459580 464869510 491433482 557843412 697304265 737150223 929739020 982866964 1228583705 1394608530 1474300446 1720017187 2457167410 2789217060 2948600892 3440034374 3685751115 4914334820 5160051561 6880068748 7371502230 8600085935 10320103122 14743004460 17200171870 20640206244 25800257805 34400343740 51600515610 103201031220