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68007468148 = 2217001867037
BaseRepresentation
bin111111010101100011…
…111001110001110100
320111112120001100000121
4333111203321301310
52103234402440043
651124152021324
74625200640614
oct772543716164
9214476040017
1068007468148
1126929496434
121121b691844
13654a6b6619
143412142a44
151b80725ded
hexfd58f9c74

68007468148 has 6 divisors (see below), whose sum is σ = 119013069266. Its totient is φ = 34003734072.

The previous prime is 68007468077. The next prime is 68007468163. The reversal of 68007468148 is 84186470086.

It can be written as a sum of positive squares in only one way, i.e., 40841176464 + 27166291684 = 202092^2 + 164822^2 .

It is a junction number, because it is equal to n+sod(n) for n = 68007468095 and 68007468104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8500933515 + ... + 8500933522.

Almost surely, 268007468148 is an apocalyptic number.

It is an amenable number.

68007468148 is a deficient number, since it is larger than the sum of its proper divisors (51005601118).

68007468148 is a wasteful number, since it uses less digits than its factorization.

68007468148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17001867041 (or 17001867039 counting only the distinct ones).

The product of its (nonzero) digits is 2064384, while the sum is 52.

The spelling of 68007468148 in words is "sixty-eight billion, seven million, four hundred sixty-eight thousand, one hundred forty-eight".

Divisors: 1 2 4 17001867037 34003734074 68007468148