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67268741 = 411640701
BaseRepresentation
bin1000000001001…
…11000010000101
311200120121100212
410000213002011
5114210044431
610401445205
71444526531
oct400470205
9150517325
1067268741
1134a76001
121a640805
1310c235b7
148d10bc1
155d8b72b
hex4027085

67268741 has 4 divisors (see below), whose sum is σ = 68909484. Its totient is φ = 65628000.

The previous prime is 67268723. The next prime is 67268749. The reversal of 67268741 is 14786276.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1188100 + 66080641 = 1090^2 + 8129^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-67268741 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41), and also a Moran number because the ratio is a prime number: 1640701 = 67268741 / (6 + 7 + 2 + 6 + 8 + 7 + 4 + 1).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67268749) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 820310 + ... + 820391.

It is an arithmetic number, because the mean of its divisors is an integer number (17227371).

Almost surely, 267268741 is an apocalyptic number.

It is an amenable number.

67268741 is a deficient number, since it is larger than the sum of its proper divisors (1640743).

67268741 is a wasteful number, since it uses less digits than its factorization.

67268741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1640742.

The product of its digits is 112896, while the sum is 41.

The square root of 67268741 is about 8201.7523127683. The cubic root of 67268741 is about 406.6971226705.

The spelling of 67268741 in words is "sixty-seven million, two hundred sixty-eight thousand, seven hundred forty-one".

Divisors: 1 41 1640701 67268741