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67050009381 = 329770689763
BaseRepresentation
bin111110011100011111…
…011111001100100101
320102001211102101111210
4332130133133030211
52044304300300011
650445150222033
74562363450625
oct763437371445
9212054371453
1067050009381
1126487a894a3
1210bb2ab4919
136427222884
143360d0a885
151b266496a6
hexf9c7df325

67050009381 has 8 divisors (see below), whose sum is σ = 92482771680. Its totient is φ = 43158626672.

The previous prime is 67050009361. The next prime is 67050009391. The reversal of 67050009381 is 18390005076.

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

It is a cyclic number.

It is not a de Polignac number, because 67050009381 - 26 = 67050009317 is a prime.

It is a super-2 number, since 2×670500093812 (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67050009361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 385344795 + ... + 385344968.

It is an arithmetic number, because the mean of its divisors is an integer number (11560346460).

Almost surely, 267050009381 is an apocalyptic number.

It is an amenable number.

67050009381 is a deficient number, since it is larger than the sum of its proper divisors (25432762299).

67050009381 is a wasteful number, since it uses less digits than its factorization.

67050009381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 770689795.

The product of its (nonzero) digits is 45360, while the sum is 39.

The spelling of 67050009381 in words is "sixty-seven billion, fifty million, nine thousand, three hundred eighty-one".

Divisors: 1 3 29 87 770689763 2312069289 22350003127 67050009381