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30100002220 = 2256772223043
BaseRepresentation
bin11100000010000110…
…011001010110101100
32212200201110112122001
4130002012121112230
5443121100032340
621454443302044
72113622540341
oct340206312654
985621415561
1030100002220
11118467371a2
125a0051a924
132ab9009902
14165783a7c8
15bb27ce29a
hex7021995ac

30100002220 has 24 divisors (see below), whose sum is σ = 63303400944. Its totient is φ = 12022211136.

The previous prime is 30100002209. The next prime is 30100002241. The reversal of 30100002220 is 2220000103.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 30100002197 and 30100002206.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1097982 + ... + 1125061.

It is an arithmetic number, because the mean of its divisors is an integer number (2637641706).

Almost surely, 230100002220 is an apocalyptic number.

It is an amenable number.

30100002220 is an abundant number, since it is smaller than the sum of its proper divisors (33203398724).

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

30100002220 is a wasteful number, since it uses less digits than its factorization.

30100002220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2223729 (or 2223727 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 10.

Adding to 30100002220 its reverse (2220000103), we get a palindrome (32320002323).

The spelling of 30100002220 in words is "thirty billion, one hundred million, two thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 677 1354 2708 3385 6770 13540 2223043 4446086 8892172 11115215 22230430 44460860 1505000111 3010000222 6020000444 7525000555 15050001110 30100002220