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67873541140 = 22518118749597
BaseRepresentation
bin111111001101100101…
…000000110000010100
320111012020001010201001
4333031211000300110
52103001111304030
651103005313044
74621653403066
oct771545006024
9214166033631
1067873541140
112686a932059
12111a2865784
136528a24582
1433dc43d736
151b73abdcca
hexfcd940c14

67873541140 has 24 divisors (see below), whose sum is σ = 143321927112. Its totient is φ = 26999418240.

The previous prime is 67873541137. The next prime is 67873541161. The reversal of 67873541140 is 4114537876.

It can be written as a sum of positive squares in 4 ways, for example, as 5875529104 + 61998012036 = 76652^2 + 248994^2 .

It is a congruent number.

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, 9371179 + ... + 9378418.

It is an arithmetic number, because the mean of its divisors is an integer number (5971746963).

Almost surely, 267873541140 is an apocalyptic number.

It is an amenable number.

67873541140 is an abundant number, since it is smaller than the sum of its proper divisors (75448385972).

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

67873541140 is a wasteful number, since it uses less digits than its factorization.

67873541140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18749787 (or 18749785 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 46.

The spelling of 67873541140 in words is "sixty-seven billion, eight hundred seventy-three million, five hundred forty-one thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 181 362 724 905 1810 3620 18749597 37499194 74998388 93747985 187495970 374991940 3393677057 6787354114 13574708228 16968385285 33936770570 67873541140