Search a number
-
+
1389296200 = 23528218461
BaseRepresentation
bin101001011001110…
…1111101001001000
310120211012120002211
41102303233221020
510321124434300
6345505234504
746266552145
oct12263575110
93524176084
101389296200
11653248886
12329332a34
13191aa1776
14d27273cc
1581e7d4ba
hex52cefa48

1389296200 has 48 divisors (see below), whose sum is σ = 3234430260. Its totient is φ = 554976000.

The previous prime is 1389296173. The next prime is 1389296201. The reversal of 1389296200 is 26929831.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 590781636 + 798514564 = 24306^2 + 28258^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (1389296201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 159970 + ... + 168430.

Almost surely, 21389296200 is an apocalyptic number.

1389296200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1389296200 is an abundant number, since it is smaller than the sum of its proper divisors (1845134060).

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

1389296200 is a wasteful number, since it uses less digits than its factorization.

1389296200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9298 (or 9289 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 1389296200 is about 37273.2638764034. The cubic root of 1389296200 is about 1115.8306398017.

The spelling of 1389296200 in words is "one billion, three hundred eighty-nine million, two hundred ninety-six thousand, two hundred".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 200 821 1642 3284 4105 6568 8210 8461 16420 16922 20525 32840 33844 41050 42305 67688 82100 84610 164200 169220 211525 338440 423050 846100 1692200 6946481 13892962 27785924 34732405 55571848 69464810 138929620 173662025 277859240 347324050 694648100 1389296200