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102204223 = 1121018363
BaseRepresentation
bin1100001011110…
…00001100111111
321010022111211121
412011320030333
5202131013343
614050331411
72350502332
oct605701477
9233274747
10102204223
1152767600
122a289b67
1318235b94
14d806619
158e8caed
hex617833f

102204223 has 12 divisors (see below), whose sum is σ = 113466024. Its totient is φ = 91982000.

The previous prime is 102204209. The next prime is 102204229. The reversal of 102204223 is 322402201.

It is a de Polignac number, because none of the positive numbers 2k-102204223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102204197 and 102204206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102204229) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8040 + ... + 16402.

It is an arithmetic number, because the mean of its divisors is an integer number (9455502).

Almost surely, 2102204223 is an apocalyptic number.

102204223 is a deficient number, since it is larger than the sum of its proper divisors (11261801).

102204223 is a wasteful number, since it uses less digits than its factorization.

102204223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8486 (or 8475 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 102204223 is about 10109.6104277069. The cubic root of 102204223 is about 467.5444940351.

Adding to 102204223 its reverse (322402201), we get a palindrome (424606424).

The spelling of 102204223 in words is "one hundred two million, two hundred four thousand, two hundred twenty-three".

Divisors: 1 11 101 121 1111 8363 12221 91993 844663 1011923 9291293 102204223