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67107381320 = 2357239669219
BaseRepresentation
bin111110011111111010…
…010110000001001000
320102012211101012000102
4332133322112001020
52044413442200240
650455000024532
74563661221020
oct763772260110
9212184335012
1067107381320
1126507404921
121100a162148
13643608c575
1433687a2a80
151b2b6cd815
hexf9fe96048

67107381320 has 32 divisors (see below), whose sum is σ = 172561838400. Its totient is φ = 23008244928.

The previous prime is 67107381307. The next prime is 67107381431. The reversal of 67107381320 is 2318370176.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119834330 + ... + 119834889.

It is an arithmetic number, because the mean of its divisors is an integer number (5392557450).

Almost surely, 267107381320 is an apocalyptic number.

It is an amenable number.

67107381320 is an abundant number, since it is smaller than the sum of its proper divisors (105454457080).

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

67107381320 is a wasteful number, since it uses less digits than its factorization.

67107381320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239669237 (or 239669233 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 38.

The spelling of 67107381320 in words is "sixty-seven billion, one hundred seven million, three hundred eighty-one thousand, three hundred twenty".

Divisors: 1 2 4 5 7 8 10 14 20 28 35 40 56 70 140 280 239669219 479338438 958676876 1198346095 1677684533 1917353752 2396692190 3355369066 4793384380 6710738132 8388422665 9586768760 13421476264 16776845330 33553690660 67107381320