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67107104077 = 1328118370409
BaseRepresentation
bin111110011111111001…
…010010010101001101
320102012210212002201011
4332133321102111031
52044413404312302
650454550045221
74563655654516
oct763771222515
9212183762634
1067107104077
11265072355a2
121100a049811
136435cc3310
14336872da0d
151b2b6765d7
hexf9fe5254d

67107104077 has 8 divisors (see below), whose sum is σ = 72526378680. Its totient is φ = 61724570880.

The previous prime is 67107104069. The next prime is 67107104081. The reversal of 67107104077 is 77040170176.

It can be written as a sum of positive squares in 4 ways, for example, as 4714058281 + 62393045796 = 68659^2 + 249786^2 .

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 67107104077 - 23 = 67107104069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67107104677) 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, 9181552 + ... + 9188857.

It is an arithmetic number, because the mean of its divisors is an integer number (9065797335).

Almost surely, 267107104077 is an apocalyptic number.

It is an amenable number.

67107104077 is a deficient number, since it is larger than the sum of its proper divisors (5419274603).

67107104077 is a wasteful number, since it uses less digits than its factorization.

67107104077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18370703.

The product of its (nonzero) digits is 57624, while the sum is 40.

The spelling of 67107104077 in words is "sixty-seven billion, one hundred seven million, one hundred four thousand, seventy-seven".

Divisors: 1 13 281 3653 18370409 238815317 5162084929 67107104077