Search a number
-
+
1301305452 = 223108442121
BaseRepresentation
bin100110110010000…
…0101100001101100
310100200122011111020
41031210011201230
510131113233302
6333043254140
744150625306
oct11544054154
93320564436
101301305452
1160860a057
1230397a350
131797a4235
14c4b80976
157939bebc
hex4d90586c

1301305452 has 12 divisors (see below), whose sum is σ = 3036379416. Its totient is φ = 433768480.

The previous prime is 1301305451. The next prime is 1301305463. The reversal of 1301305452 is 2545031031.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (1301305451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54221049 + ... + 54221072.

It is an arithmetic number, because the mean of its divisors is an integer number (253031618).

Almost surely, 21301305452 is an apocalyptic number.

1301305452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1301305452 is an abundant number, since it is smaller than the sum of its proper divisors (1735073964).

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

1301305452 is a wasteful number, since it uses less digits than its factorization.

1301305452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108442128 (or 108442126 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 1301305452 is about 36073.6115741133. The cubic root of 1301305452 is about 1091.7580841831.

Adding to 1301305452 its reverse (2545031031), we get a palindrome (3846336483).

The spelling of 1301305452 in words is "one billion, three hundred one million, three hundred five thousand, four hundred fifty-two".

Divisors: 1 2 3 4 6 12 108442121 216884242 325326363 433768484 650652726 1301305452