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102410321221 = 1313815704357
BaseRepresentation
bin101111101100000100…
…0010111110101000101
3100210100011002100101001
41133120020113311011
53134214020234341
6115014024333301
710253552240035
oct1373010276505
9323304070331
10102410321221
113a482a5810a
1217a21014231
139870ca0210
144d572098c5
1529e5b4dd31
hex17d8217d45

102410321221 has 8 divisors (see below), whose sum is σ = 110367918584. Its totient is φ = 94464135360.

The previous prime is 102410321207. The next prime is 102410321267. The reversal of 102410321221 is 122123014201.

It can be written as a sum of positive squares in 4 ways, for example, as 4625904196 + 97784417025 = 68014^2 + 312705^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 102410321221 - 29 = 102410320709 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 (102410321821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2834226 + ... + 2870131.

It is an arithmetic number, because the mean of its divisors is an integer number (13795989823).

Almost surely, 2102410321221 is an apocalyptic number.

It is an amenable number.

102410321221 is a deficient number, since it is larger than the sum of its proper divisors (7957597363).

102410321221 is a wasteful number, since it uses less digits than its factorization.

102410321221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5705751.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 102410321221 its reverse (122123014201), we get a palindrome (224533335422).

The spelling of 102410321221 in words is "one hundred two billion, four hundred ten million, three hundred twenty-one thousand, two hundred twenty-one".

Divisors: 1 13 1381 17953 5704357 74156641 7877717017 102410321221