Search a number
-
+
1307152845 = 32529047841
BaseRepresentation
bin100110111101001…
…1001000111001101
310101002122020121100
41031322121013031
510134112342340
6333412453313
744251421145
oct11572310715
93332566540
101307152845
11610943309
1230591a239
1317aa7092b
14c5863925
1579b54830
hex4de991cd

1307152845 has 12 divisors (see below), whose sum is σ = 2265731676. Its totient is φ = 697148160.

The previous prime is 1307152841. The next prime is 1307152849. The reversal of 1307152845 is 5482517031.

It is an interprime number because it is at equal distance from previous prime (1307152841) and next prime (1307152849).

It can be written as a sum of positive squares in 2 ways, for example, as 421316676 + 885836169 = 20526^2 + 29763^2 .

It is not a de Polignac number, because 1307152845 - 22 = 1307152841 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1307152841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14523876 + ... + 14523965.

It is an arithmetic number, because the mean of its divisors is an integer number (188810973).

Almost surely, 21307152845 is an apocalyptic number.

1307152845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1307152845 is a deficient number, since it is larger than the sum of its proper divisors (958578831).

1307152845 is a wasteful number, since it uses less digits than its factorization.

1307152845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29047852 (or 29047849 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 36.

The square root of 1307152845 is about 36154.5687984244. The cubic root of 1307152845 is about 1093.3909061390.

Adding to 1307152845 its reverse (5482517031), we get a palindrome (6789669876).

The spelling of 1307152845 in words is "one billion, three hundred seven million, one hundred fifty-two thousand, eight hundred forty-five".

Divisors: 1 3 5 9 15 45 29047841 87143523 145239205 261430569 435717615 1307152845