Search a number
-
+
30100232220 = 2235864158057
BaseRepresentation
bin11100000010000111…
…010001100000011100
32212200201220020010120
4130002013101200130
5443121124412340
621454452234540
72113624516032
oct340207214034
985621806116
1030100232220
1111846883a83
125a0060ba50
132ab908a4c6
14165789a552
15bb28274d0
hex7021d181c

30100232220 has 48 divisors (see below), whose sum is σ = 84291855648. Its totient is φ = 8025661440.

The previous prime is 30100232209. The next prime is 30100232237. The reversal of 30100232220 is 2223200103.

It is a super-2 number, since 2×301002322202 (a number of 22 digits) contains 22 as substring.

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 30100232220.

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 15 ways as a sum of consecutive naturals, for example, 489432 + ... + 547488.

It is an arithmetic number, because the mean of its divisors is an integer number (1756080326).

Almost surely, 230100232220 is an apocalyptic number.

30100232220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30100232220 is an abundant number, since it is smaller than the sum of its proper divisors (54191623428).

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

30100232220 is a wasteful number, since it uses less digits than its factorization.

30100232220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66710 (or 66708 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 30100232220 its reverse (2223200103), we get a palindrome (32323432323).

The spelling of 30100232220 in words is "thirty billion, one hundred million, two hundred thirty-two thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 8641 17282 25923 34564 43205 51846 58057 86410 103692 116114 129615 172820 174171 232228 259230 290285 348342 518460 580570 696684 870855 1161140 1741710 3483420 501670537 1003341074 1505011611 2006682148 2508352685 3010023222 5016705370 6020046444 7525058055 10033410740 15050116110 30100232220