Search a number
-
+
102310045489 = 971054742737
BaseRepresentation
bin101111101001000100…
…1110110011100110001
3100210002011101210221001
41133102021312130301
53134012332423424
6115000043202001
710251224016001
oct1372211663461
9323064353831
10102310045489
113a431398503
12179b3516301
139856291072
144d47b86001
1529dbe42844
hex17d2276731

102310045489 has 4 divisors (see below), whose sum is σ = 103364788324. Its totient is φ = 101255302656.

The previous prime is 102310045477. The next prime is 102310045511. The reversal of 102310045489 is 984540013201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 44450553889 + 57859491600 = 210833^2 + 240540^2 .

It is a cyclic number.

It is not a de Polignac number, because 102310045489 - 211 = 102310043441 is a prime.

It is a super-2 number, since 2×1023100454892 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102310045589) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 527371272 + ... + 527371465.

It is an arithmetic number, because the mean of its divisors is an integer number (25841197081).

Almost surely, 2102310045489 is an apocalyptic number.

It is an amenable number.

102310045489 is a deficient number, since it is larger than the sum of its proper divisors (1054742835).

102310045489 is an equidigital number, since it uses as much as digits as its factorization.

102310045489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1054742834.

The product of its (nonzero) digits is 34560, while the sum is 37.

The spelling of 102310045489 in words is "one hundred two billion, three hundred ten million, forty-five thousand, four hundred eighty-nine".

Divisors: 1 97 1054742737 102310045489