Search a number
-
+
102020001223 = 714574285889
BaseRepresentation
bin101111100000011011…
…1011010110111000111
3100202022221122000222211
41133000313122313013
53132414110014343
6114511202404251
710241102462620
oct1370067326707
9322287560884
10102020001223
113a2a26a39a8
1217932360687
13980b16a93a
144d1b444a47
1529c174d79d
hex17c0ddadc7

102020001223 has 4 divisors (see below), whose sum is σ = 116594287120. Its totient is φ = 87445715328.

The previous prime is 102020001169. The next prime is 102020001227. The reversal of 102020001223 is 322100020201.

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

It is a cyclic number.

It is not a de Polignac number, because 102020001223 - 217 = 102019870151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102020001227) 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, 7287142938 + ... + 7287142951.

It is an arithmetic number, because the mean of its divisors is an integer number (29148571780).

Almost surely, 2102020001223 is an apocalyptic number.

102020001223 is a deficient number, since it is larger than the sum of its proper divisors (14574285897).

102020001223 is an equidigital number, since it uses as much as digits as its factorization.

102020001223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14574285896.

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 102020001223 its reverse (322100020201), we get a palindrome (424120021424).

The spelling of 102020001223 in words is "one hundred two billion, twenty million, one thousand, two hundred twenty-three".

Divisors: 1 7 14574285889 102020001223