Search a number
-
+
123454125130 = 25767714291823
BaseRepresentation
bin111001011111001110…
…0000111010001001010
3102210122201201100101211
41302332130013101022
54010313224001010
6132414122203334
711630210515030
oct1627634072112
9383581640354
10123454125130
11483a16a9496
121bb1465354a
13b8459b10ab
145d91da2550
15332835008a
hex1cbe70744a

123454125130 has 64 divisors (see below), whose sum is σ = 254655498240. Its totient is φ = 42211862784.

The previous prime is 123454125101. The next prime is 123454125139. The reversal of 123454125130 is 31521454321.

It is a super-2 number, since 2×1234541251302 (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 123454125092 and 123454125101.

It is not an unprimeable number, because it can be changed into a prime (123454125139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 67719399 + ... + 67721221.

It is an arithmetic number, because the mean of its divisors is an integer number (3978992160).

Almost surely, 2123454125130 is an apocalyptic number.

123454125130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123454125130 is an abundant number, since it is smaller than the sum of its proper divisors (131201373110).

123454125130 is a wasteful number, since it uses less digits than its factorization.

123454125130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3943.

The product of its (nonzero) digits is 14400, while the sum is 31.

Adding to 123454125130 its reverse (31521454321), we get a palindrome (154975579451).

The spelling of 123454125130 in words is "one hundred twenty-three billion, four hundred fifty-four million, one hundred twenty-five thousand, one hundred thirty".

Divisors: 1 2 5 7 10 14 35 70 677 1354 1429 1823 2858 3385 3646 4739 6770 7145 9115 9478 10003 12761 14290 18230 20006 23695 25522 47390 50015 63805 100030 127610 967433 1234171 1934866 2468342 2605067 4837165 5210134 6170855 6772031 8639197 9674330 12341710 13025335 13544062 17278394 18235469 26050670 33860155 36470938 43195985 67720310 86391970 91177345 182354690 1763630359 3527260718 8818151795 12345412513 17636303590 24690825026 61727062565 123454125130