Search a number
-
+
2130302220 = 223589398933
BaseRepresentation
bin111111011111001…
…1101010100001100
312111110112120021020
41332332131110030
513330324132340
6551215434140
7103535161434
oct17676352414
95443476236
102130302220
119a3555652
124b5525950
1327c46a577
14162cd72c4
15c70509d0
hex7ef9d50c

2130302220 has 48 divisors (see below), whose sum is σ = 6031882080. Its totient is φ = 561696256.

The previous prime is 2130302189. The next prime is 2130302227. The reversal of 2130302220 is 222030312.

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 2130302220.

It is not an unprimeable number, because it can be changed into a prime (2130302227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 194127 + ... + 204806.

It is an arithmetic number, because the mean of its divisors is an integer number (125664210).

Almost surely, 22130302220 is an apocalyptic number.

2130302220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2130302220 is an abundant number, since it is smaller than the sum of its proper divisors (3901579860).

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

2130302220 is a wasteful number, since it uses less digits than its factorization.

2130302220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399034 (or 399032 counting only the distinct ones).

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

The square root of 2130302220 is about 46155.1971071514. The cubic root of 2130302220 is about 1286.7092013763.

Adding to 2130302220 its reverse (222030312), we get a palindrome (2352332532).

The spelling of 2130302220 in words is "two billion, one hundred thirty million, three hundred two thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 89 178 267 356 445 534 890 1068 1335 1780 2670 5340 398933 797866 1196799 1595732 1994665 2393598 3989330 4787196 5983995 7978660 11967990 23935980 35505037 71010074 106515111 142020148 177525185 213030222 355050370 426060444 532575555 710100740 1065151110 2130302220