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67818034340 = 2257484414531
BaseRepresentation
bin111111001010010001…
…010001010010100100
320111001100121002200122
4333022101101102210
52102342404044330
651053303501112
74620410531510
oct771221212244
9214040532618
1067818034340
112684156aa71
1211188157798
13651a38b804
1433d4d11140
151b6dca75e5
hexfca4514a4

67818034340 has 24 divisors (see below), whose sum is σ = 162763282752. Its totient is φ = 23251897440.

The previous prime is 67818034283. The next prime is 67818034463. The reversal of 67818034340 is 4343081876.

It is a junction number, because it is equal to n+sod(n) for n = 67818034291 and 67818034300.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 242207126 + ... + 242207405.

It is an arithmetic number, because the mean of its divisors is an integer number (6781803448).

Almost surely, 267818034340 is an apocalyptic number.

It is an amenable number.

67818034340 is an abundant number, since it is smaller than the sum of its proper divisors (94945248412).

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

67818034340 is a wasteful number, since it uses less digits than its factorization.

67818034340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 484414547 (or 484414545 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 44.

The spelling of 67818034340 in words is "sixty-seven billion, eight hundred eighteen million, thirty-four thousand, three hundred forty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 484414531 968829062 1937658124 2422072655 3390901717 4844145310 6781803434 9688290620 13563606868 16954508585 33909017170 67818034340