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45230123 = 101447823
BaseRepresentation
bin1010110010001…
…0100000101011
310011002221001202
42230202200223
543034330443
64253234415
71056310151
oct254424053
9104087052
1045230123
1123593074
1213192a0b
1394a82b3
1460153d1
153e867b8
hex2b2282b

45230123 has 4 divisors (see below), whose sum is σ = 45678048. Its totient is φ = 44782200.

The previous prime is 45230099. The next prime is 45230173. The reversal of 45230123 is 32103254.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 45230123 - 28 = 45229867 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 45230095 and 45230104.

It is not an unprimeable number, because it can be changed into a prime (45230173) 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 3 ways as a sum of consecutive naturals, for example, 223811 + ... + 224012.

It is an arithmetic number, because the mean of its divisors is an integer number (11419512).

Almost surely, 245230123 is an apocalyptic number.

45230123 is a deficient number, since it is larger than the sum of its proper divisors (447925).

45230123 is a wasteful number, since it uses less digits than its factorization.

45230123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 447924.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 45230123 is about 6725.3344154770. The cubic root of 45230123 is about 356.2946131468.

Adding to 45230123 its reverse (32103254), we get a palindrome (77333377).

The spelling of 45230123 in words is "forty-five million, two hundred thirty thousand, one hundred twenty-three".

Divisors: 1 101 447823 45230123