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68968048972 = 2219389336851
BaseRepresentation
bin100000000111011010…
…0001110100101001100
320121000111112220012011
41000032310032211030
52112221310031342
651403344351004
74661043513034
oct1001664164514
9217014486164
1068968048972
1127281735a89
1211449315464
136671701444
1434a394c8c4
151bd9c1c717
hex100ed0e94c

68968048972 has 12 divisors (see below), whose sum is σ = 121319445016. Its totient is φ = 34305350400.

The previous prime is 68968048949. The next prime is 68968048973. The reversal of 68968048972 is 27984086986.

It is a junction number, because it is equal to n+sod(n) for n = 68968048898 and 68968048907.

It is not an unprimeable number, because it can be changed into a prime (68968048973) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44667654 + ... + 44669197.

Almost surely, 268968048972 is an apocalyptic number.

It is an amenable number.

68968048972 is a deficient number, since it is larger than the sum of its proper divisors (52351396044).

68968048972 is a wasteful number, since it uses less digits than its factorization.

68968048972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89337048 (or 89337046 counting only the distinct ones).

The product of its (nonzero) digits is 83607552, while the sum is 67.

The spelling of 68968048972 in words is "sixty-eight billion, nine hundred sixty-eight million, forty-eight thousand, nine hundred seventy-two".

Divisors: 1 2 4 193 386 772 89336851 178673702 357347404 17242012243 34484024486 68968048972