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1223023130 = 25763127689
BaseRepresentation
bin100100011100101…
…1101101000011010
310011020100000022222
41020321131220122
510001043220010
6321205344042
742210345050
oct11071355032
93136300288
101223023130
1157840141a
122a1708022
131664c5934
14b86041d0
1572587355
hex48e5da1a

1223023130 has 32 divisors (see below), whose sum is σ = 2520011520. Its totient is φ = 418642560.

The previous prime is 1223023127. The next prime is 1223023147. The reversal of 1223023130 is 313203221.

It is a junction number, because it is equal to n+sod(n) for n = 1223023099 and 1223023108.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30326 + ... + 58014.

It is an arithmetic number, because the mean of its divisors is an integer number (78750360).

Almost surely, 21223023130 is an apocalyptic number.

1223023130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1223023130 is an abundant number, since it is smaller than the sum of its proper divisors (1296988390).

1223023130 is a wasteful number, since it uses less digits than its factorization.

1223023130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28334.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 1223023130 is about 34971.7475971676. The cubic root of 1223023130 is about 1069.4115989318.

Adding to 1223023130 its reverse (313203221), we get a palindrome (1536226351).

The spelling of 1223023130 in words is "one billion, two hundred twenty-three million, twenty-three thousand, one hundred thirty".

Divisors: 1 2 5 7 10 14 35 70 631 1262 3155 4417 6310 8834 22085 27689 44170 55378 138445 193823 276890 387646 969115 1938230 17471759 34943518 87358795 122302313 174717590 244604626 611511565 1223023130