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102024221 = 1325131267
BaseRepresentation
bin1100001010011…
…00010000011101
321002222100220212
412011030100131
5202104233341
614042422205
72346122465
oct605142035
9232870825
10102024221
1152654342
122a201965
13181a1c80
14d79aba5
158e545eb
hex614c41d

102024221 has 8 divisors (see below), whose sum is σ = 110313504. Its totient is φ = 93798000.

The previous prime is 102024173. The next prime is 102024227. The reversal of 102024221 is 122420201.

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 102024221 - 218 = 101762077 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 102024196 and 102024205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102024227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12371 + ... + 18896.

It is an arithmetic number, because the mean of its divisors is an integer number (13789188).

Almost surely, 2102024221 is an apocalyptic number.

It is an amenable number.

102024221 is a deficient number, since it is larger than the sum of its proper divisors (8289283).

102024221 is a wasteful number, since it uses less digits than its factorization.

102024221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31531.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 102024221 is about 10100.7039853666. The cubic root of 102024221 is about 467.2698530700.

Adding to 102024221 its reverse (122420201), we get a palindrome (224444422).

The spelling of 102024221 in words is "one hundred two million, twenty-four thousand, two hundred twenty-one".

Divisors: 1 13 251 3263 31267 406471 7848017 102024221