Search a number
-
+
102022270447 = 235329531657
BaseRepresentation
bin101111100000100000…
…0000100110111101111
3100202100002220022210011
41133001000010313233
53132420200123242
6114511323154051
710241130663466
oct1370100046757
9322302808704
10102022270447
113a2a3a03899
1217933075927
13980b783786
144d1b8759dd
1529c1a4ad17
hex17c1004def

102022270447 has 24 divisors (see below), whose sum is σ = 108683969184. Its totient is φ = 95587075584.

The previous prime is 102022270429. The next prime is 102022270451. The reversal of 102022270447 is 744072220201.

It is not a de Polignac number, because 102022270447 - 223 = 102013881839 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102022270417) 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, 61569643 + ... + 61571299.

It is an arithmetic number, because the mean of its divisors is an integer number (4528498716).

Almost surely, 2102022270447 is an apocalyptic number.

102022270447 is a deficient number, since it is larger than the sum of its proper divisors (6661698737).

102022270447 is an equidigital number, since it uses as much as digits as its factorization.

102022270447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2739 (or 2686 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 31.

Adding to 102022270447 its reverse (744072220201), we get a palindrome (846094490648).

The spelling of 102022270447 in words is "one hundred two billion, twenty-two million, two hundred seventy thousand, four hundred forty-seven".

Divisors: 1 23 53 953 1219 1657 2809 21919 38111 50509 64607 87821 1161707 1579121 2019883 2676977 4654513 36319783 61570471 83693413 107053799 1924948499 4435750889 102022270447