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189160000068 = 223131212564103
BaseRepresentation
bin1011000000101011010…
…0001000101001000100
3200002020212220122002110
42300022310020221010
511044344430000233
6222522055141020
716444363320444
oct2601264105104
9602225818073
10189160000068
1173249985876
12307b1374770
1314ab75b5330
149226580124
154dc198c663
hex2c0ad08a44

189160000068 has 24 divisors (see below), whose sum is σ = 475325128768. Its totient is φ = 58203076896.

The previous prime is 189160000033. The next prime is 189160000069. The reversal of 189160000068 is 860000061981.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a junction number, because it is equal to n+sod(n) for n = 189159999990 and 189160000035.

It is not an unprimeable number, because it can be changed into a prime (189160000069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 606281896 + ... + 606282207.

Almost surely, 2189160000068 is an apocalyptic number.

It is an amenable number.

189160000068 is an abundant number, since it is smaller than the sum of its proper divisors (286165128700).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

189160000068 is a wasteful number, since it uses less digits than its factorization.

189160000068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1212564123 (or 1212564121 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 39.

The spelling of 189160000068 in words is "one hundred eighty-nine billion, one hundred sixty million, sixty-eight", and thus it is an aban number.

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 1212564103 2425128206 3637692309 4850256412 7275384618 14550769236 15763333339 31526666678 47290000017 63053333356 94580000034 189160000068