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102311223 = 374871963
BaseRepresentation
bin1100001100100…
…10010100110111
321010111221121120
412012102110313
5202142424343
614052515023
72351426310
oct606222467
9233457546
10102311223
115282aa33
122a31ba73
13182727b1
14d833607
158eae683
hex6192537

102311223 has 8 divisors (see below), whose sum is σ = 155902848. Its totient is φ = 58463544.

The previous prime is 102311207. The next prime is 102311227. The reversal of 102311223 is 322113201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 102311223 - 24 = 102311207 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102311227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2435961 + ... + 2436002.

It is an arithmetic number, because the mean of its divisors is an integer number (19487856).

Almost surely, 2102311223 is an apocalyptic number.

102311223 is a deficient number, since it is larger than the sum of its proper divisors (53591625).

102311223 is an equidigital number, since it uses as much as digits as its factorization.

102311223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4871973.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 102311223 is about 10114.9010375782. The cubic root of 102311223 is about 467.7075982308.

Adding to 102311223 its reverse (322113201), we get a palindrome (424424424).

It can be divided in two parts, 1023 and 11223, that added together give a triangular number (12246 = T156).

The spelling of 102311223 in words is "one hundred two million, three hundred eleven thousand, two hundred twenty-three".

Divisors: 1 3 7 21 4871963 14615889 34103741 102311223