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67255357 = 135397613
BaseRepresentation
bin1000000001000…
…11110000111101
311200112221000011
410000203300331
5114204132412
610401303221
71444442521
oct400436075
9150487004
1067255357
1134a66a44
121a634b11
1310c1a490
148d09d81
155d877a7
hex4023c3d

67255357 has 8 divisors (see below), whose sum is σ = 73796184. Its totient is φ = 60909888.

The previous prime is 67255351. The next prime is 67255361. The reversal of 67255357 is 75355276.

It can be written as a sum of positive squares in 4 ways, for example, as 16475481 + 50779876 = 4059^2 + 7126^2 .

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

It is not a de Polignac number, because 67255357 - 223 = 58866749 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 (67255351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48118 + ... + 49495.

It is an arithmetic number, because the mean of its divisors is an integer number (9224523).

Almost surely, 267255357 is an apocalyptic number.

It is an amenable number.

67255357 is a deficient number, since it is larger than the sum of its proper divisors (6540827).

67255357 is a wasteful number, since it uses less digits than its factorization.

67255357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97679.

The product of its digits is 220500, while the sum is 40.

The square root of 67255357 is about 8200.9363489787. The cubic root of 67255357 is about 406.6701483025.

The spelling of 67255357 in words is "sixty-seven million, two hundred fifty-five thousand, three hundred fifty-seven".

Divisors: 1 13 53 689 97613 1268969 5173489 67255357