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67059940 = 2257942443
BaseRepresentation
bin1111111111010…
…0000011100100
311200011222221111
43333310003210
5114131404230
610353154404
71443000013
oct377640344
9150158844
1067059940
1134943142
121a55ba04
1310b7c54c
148c98a7a
155d4992a
hex3ff40e4

67059940 has 24 divisors (see below), whose sum is σ = 142611840. Its totient is φ = 26483808.

The previous prime is 67059907. The next prime is 67059959. The reversal of 67059940 is 4995076.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 67059893 and 67059902.

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, 19642 + ... + 22801.

It is an arithmetic number, because the mean of its divisors is an integer number (5942160).

Almost surely, 267059940 is an apocalyptic number.

It is an amenable number.

67059940 is an abundant number, since it is smaller than the sum of its proper divisors (75551900).

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

67059940 is a wasteful number, since it uses less digits than its factorization.

67059940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42531 (or 42529 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 40.

The square root of 67059940 is about 8189.0133715851. The cubic root of 67059940 is about 406.2758929453.

The spelling of 67059940 in words is "sixty-seven million, fifty-nine thousand, nine hundred forty".

Divisors: 1 2 4 5 10 20 79 158 316 395 790 1580 42443 84886 169772 212215 424430 848860 3352997 6705994 13411988 16764985 33529970 67059940