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BaseRepresentation
bin1100001011111…
…00010011101001
321010100100220012
412011330103221
5202132033113
614050541305
72350602335
oct605742351
9233310805
10102221033
11527791a2
122a297835
1318240725
14d80c7c5
158e92aa8
hex617c4e9

102221033 has 4 divisors (see below), whose sum is σ = 102590340. Its totient is φ = 101851728.

The previous prime is 102220997. The next prime is 102221071. The reversal of 102221033 is 330122201.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 40551424 + 61669609 = 6368^2 + 7853^2 .

It is a cyclic number.

It is not a de Polignac number, because 102221033 - 28 = 102220777 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102220999 and 102221017.

It is not an unprimeable number, because it can be changed into a prime (102221533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 184238 + ... + 184791.

It is an arithmetic number, because the mean of its divisors is an integer number (25647585).

Almost surely, 2102221033 is an apocalyptic number.

It is an amenable number.

102221033 is a deficient number, since it is larger than the sum of its proper divisors (369307).

102221033 is an equidigital number, since it uses as much as digits as its factorization.

102221033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369306.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 102221033 is about 10110.4417806543. The cubic root of 102221033 is about 467.5701256964.

Adding to 102221033 its reverse (330122201), we get a palindrome (432343234).

The spelling of 102221033 in words is "one hundred two million, two hundred twenty-one thousand, thirty-three".

Divisors: 1 277 369029 102221033