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23020123130 = 2517373659797
BaseRepresentation
bin10101011100000110…
…110011001111111010
32012102022102102022222
4111130012303033322
5334121122420010
614324133044042
71443313550414
oct253406631772
965368372288
1023020123130
119843294254
124565486622
13222b2b6644
1411854499b4
158eae87355
hex55c1b33fa

23020123130 has 32 divisors (see below), whose sum is σ = 45059432976. Its totient is φ = 8432169984.

The previous prime is 23020123117. The next prime is 23020123153. The reversal of 23020123130 is 3132102032.

It can be written as a sum of positive squares in 8 ways, for example, as 19114998049 + 3905125081 = 138257^2 + 62491^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a junction number, because it is equal to n+sod(n) for n = 23020123099 and 23020123108.

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, 1823609 + ... + 1836188.

Almost surely, 223020123130 is an apocalyptic number.

23020123130 is a deficient number, since it is larger than the sum of its proper divisors (22039309846).

23020123130 is a wasteful number, since it uses less digits than its factorization.

23020123130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3659858.

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

Adding to 23020123130 its reverse (3132102032), we get a palindrome (26152225162).

The spelling of 23020123130 in words is "twenty-three billion, twenty million, one hundred twenty-three thousand, one hundred thirty".

Divisors: 1 2 5 10 17 34 37 74 85 170 185 370 629 1258 3145 6290 3659797 7319594 18298985 36597970 62216549 124433098 135412489 270824978 311082745 622165490 677062445 1354124890 2302012313 4604024626 11510061565 23020123130