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102220131223 = 724759752299
BaseRepresentation
bin101111100110011001…
…0110110101110010111
3100202211220012200202001
41133030302312232113
53133321323144343
6114543112100131
710246052531200
oct1371462665627
9322756180661
10102220131223
113a3956655a1
1217989394647
13984076c162
144d39c5c5a7
1529d40d144d
hex17cccb6b97

102220131223 has 24 divisors (see below), whose sum is σ = 123497568000. Its totient is φ = 84299504688.

The previous prime is 102220131217. The next prime is 102220131241. The reversal of 102220131223 is 322131022201.

It is not a de Polignac number, because 102220131223 - 29 = 102220130711 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 102220131223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102220134223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 240273 + ... + 512026.

It is an arithmetic number, because the mean of its divisors is an integer number (5145732000).

Almost surely, 2102220131223 is an apocalyptic number.

102220131223 is a deficient number, since it is larger than the sum of its proper divisors (21277436777).

102220131223 is an equidigital number, since it uses as much as digits as its factorization.

102220131223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 752419 (or 752412 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 102220131223 its reverse (322131022201), we get a palindrome (424351153424).

The spelling of 102220131223 in words is "one hundred two billion, two hundred twenty million, one hundred thirty-one thousand, two hundred twenty-three".

Divisors: 1 7 47 49 59 329 413 2303 2773 2891 19411 135877 752299 5266093 35358053 36862651 44385641 247506371 310699487 1732544597 2086125127 2174896409 14602875889 102220131223