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102230123 = 472175109
BaseRepresentation
bin1100001011111…
…10100001101011
321010100211100212
412011332201223
5202132330443
614051051335
72350641002
oct605764153
9233324325
10102230123
1152785006
122a2a0b4b
13182448c8
14d811c39
158e95618
hex617e86b

102230123 has 4 divisors (see below), whose sum is σ = 104405280. Its totient is φ = 100054968.

The previous prime is 102230069. The next prime is 102230153. The reversal of 102230123 is 321032201.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 321032201 = 745861743.

It is a cyclic number.

It is not a de Polignac number, because 102230123 - 28 = 102229867 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102230098 and 102230107.

It is not an unprimeable number, because it can be changed into a prime (102230153) 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, 1087508 + ... + 1087601.

It is an arithmetic number, because the mean of its divisors is an integer number (26101320).

Almost surely, 2102230123 is an apocalyptic number.

102230123 is a deficient number, since it is larger than the sum of its proper divisors (2175157).

102230123 is an equidigital number, since it uses as much as digits as its factorization.

102230123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2175156.

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

The square root of 102230123 is about 10110.8913059136. The cubic root of 102230123 is about 467.5839848352.

Adding to 102230123 its reverse (321032201), we get a palindrome (423262324).

The spelling of 102230123 in words is "one hundred two million, two hundred thirty thousand, one hundred twenty-three".

Divisors: 1 47 2175109 102230123