[go: up one dir, main page]

Search a number
-
+
1100021200 = 24522750053
BaseRepresentation
bin100000110010000…
…1111110111010000
32211122212212101221
41001210033313100
54223101134300
6301053134424
736155011615
oct10144176720
92748785357
101100021200
11514a2a233
1226848a414
13146b8a525
14a614650c
156688c31a
hex4190fdd0

1100021200 has 30 divisors (see below), whose sum is σ = 2642801894. Its totient is φ = 440008320.

The previous prime is 1100021191. The next prime is 1100021203. The reversal of 1100021200 is 21200011.

It can be written as a sum of positive squares in 3 ways, for example, as 375119424 + 724901776 = 19368^2 + 26924^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100021203) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1374627 + ... + 1375426.

Almost surely, 21100021200 is an apocalyptic number.

1100021200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1100021200 is an abundant number, since it is smaller than the sum of its proper divisors (1542780694).

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

1100021200 is a wasteful number, since it uses less digits than its factorization.

1100021200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2750071 (or 2750060 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 7.

The square root of 1100021200 is about 33166.5675040394. The cubic root of 1100021200 is about 1032.2867470315.

Adding to 1100021200 its reverse (21200011), we get a palindrome (1121221211).

The spelling of 1100021200 in words is "one billion, one hundred million, twenty-one thousand, two hundred".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 80 100 200 400 2750053 5500106 11000212 13750265 22000424 27500530 44000848 55001060 68751325 110002120 137502650 220004240 275005300 550010600 1100021200