Search a number
-
+
123500044030 = 25115321183541
BaseRepresentation
bin111001100000100101…
…1010001111011111110
3102210202221010021021211
41303001023101323332
54010412002402110
6132422442315034
711631306024256
oct1630113217376
9383687107254
10123500044030
1148415611aa0
121bb27ab8a7a
13b85236aa3c
145d98116966
15332c3c098a
hex1cc12d1efe

123500044030 has 32 divisors (see below), whose sum is σ = 247084833888. Its totient is φ = 44061763200.

The previous prime is 123500044027. The next prime is 123500044039. The reversal of 123500044030 is 30440005321.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 123500043992 and 123500044010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123500044039) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10585941 + ... + 10597600.

It is an arithmetic number, because the mean of its divisors is an integer number (7721401059).

Almost surely, 2123500044030 is an apocalyptic number.

123500044030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123500044030 is an abundant number, since it is smaller than the sum of its proper divisors (123584789858).

123500044030 is a wasteful number, since it uses less digits than its factorization.

123500044030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21183612.

The product of its (nonzero) digits is 1440, while the sum is 22.

Adding to 123500044030 its reverse (30440005321), we get a palindrome (153940049351).

The spelling of 123500044030 in words is "one hundred twenty-three billion, five hundred million, forty-four thousand, thirty".

Divisors: 1 2 5 10 11 22 53 55 106 110 265 530 583 1166 2915 5830 21183541 42367082 105917705 211835410 233018951 466037902 1122727673 1165094755 2245455346 2330189510 5613638365 11227276730 12350004403 24700008806 61750022015 123500044030