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67384131 = 383270619
BaseRepresentation
bin1000000010000…
…11001101000011
311200210110122120
410001003031003
5114222243011
610404135323
71445520123
oct401031503
9150713576
1067384131
1135044771
121a697543
1310c63c89
148d40c83
155db0a06
hex4043343

67384131 has 8 divisors (see below), whose sum is σ = 90928320. Its totient is φ = 44381352.

The previous prime is 67384129. The next prime is 67384153. The reversal of 67384131 is 13148376.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 67384131 - 21 = 67384129 is a prime.

It is a super-2 number, since 2×673841312 = 9081242221250322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 67384092 and 67384101.

It is not an unprimeable number, because it can be changed into a prime (67384171) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135061 + ... + 135558.

It is an arithmetic number, because the mean of its divisors is an integer number (11366040).

Almost surely, 267384131 is an apocalyptic number.

67384131 is a deficient number, since it is larger than the sum of its proper divisors (23544189).

67384131 is a wasteful number, since it uses less digits than its factorization.

67384131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270705.

The product of its digits is 12096, while the sum is 33.

The square root of 67384131 is about 8208.7837710589. The cubic root of 67384131 is about 406.9295336071.

The spelling of 67384131 in words is "sixty-seven million, three hundred eighty-four thousand, one hundred thirty-one".

Divisors: 1 3 83 249 270619 811857 22461377 67384131