Search a number
-
+
1230073450 = 25279893499
BaseRepresentation
bin100100101010001…
…0110111001101010
310011201121012112221
41021110112321222
510004344322300
6322020424254
742324310654
oct11124267152
93151535487
101230073450
11581387431
122a3b4808a
13167ac3a18
14b951b6d4
1572ecb31a
hex49516e6a

1230073450 has 48 divisors (see below), whose sum is σ = 2343600000. Its totient is φ = 480205440.

The previous prime is 1230073447. The next prime is 1230073451. The reversal of 1230073450 is 543700321.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (1230073451) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 349801 + ... + 353299.

It is an arithmetic number, because the mean of its divisors is an integer number (48825000).

Almost surely, 21230073450 is an apocalyptic number.

1230073450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1230073450 is a deficient number, since it is larger than the sum of its proper divisors (1113526550).

1230073450 is a wasteful number, since it uses less digits than its factorization.

1230073450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3679 (or 3674 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 1230073450 is about 35072.4029687160. The cubic root of 1230073450 is about 1071.4625964644.

Adding to 1230073450 its reverse (543700321), we get a palindrome (1773773771).

The spelling of 1230073450 in words is "one billion, two hundred thirty million, seventy-three thousand, four hundred fifty".

Divisors: 1 2 5 10 25 50 79 89 158 178 395 445 790 890 1975 2225 3499 3950 4450 6998 7031 14062 17495 34990 35155 70310 87475 174950 175775 276421 311411 351550 552842 622822 1382105 1557055 2764210 3114110 6910525 7785275 13821050 15570550 24601469 49202938 123007345 246014690 615036725 1230073450