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67304485 = 513460897
BaseRepresentation
bin1000000001011…
…11110000100101
311200122102101201
410000233300211
5114212220420
610402322501
71445035663
oct400576045
9150572351
1067304485
1134a9a946
121a659431
1310c36951
148d1dc33
155d9710a
hex402fc25

67304485 has 4 divisors (see below), whose sum is σ = 80765388. Its totient is φ = 53843584.

The previous prime is 67304483. The next prime is 67304519. The reversal of 67304485 is 58440376.

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 11249316 + 56055169 = 3354^2 + 7487^2 .

It is a cyclic number.

It is not a de Polignac number, because 67304485 - 21 = 67304483 is a prime.

It is a super-2 number, since 2×673044852 = 9059787402230450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67304483) 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 3 ways as a sum of consecutive naturals, for example, 6730444 + ... + 6730453.

It is an arithmetic number, because the mean of its divisors is an integer number (20191347).

Almost surely, 267304485 is an apocalyptic number.

It is an amenable number.

67304485 is a deficient number, since it is larger than the sum of its proper divisors (13460903).

67304485 is a wasteful number, since it uses less digits than its factorization.

67304485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13460902.

The product of its (nonzero) digits is 80640, while the sum is 37.

The square root of 67304485 is about 8203.9310699201. The cubic root of 67304485 is about 406.7691442747.

The spelling of 67304485 in words is "sixty-seven million, three hundred four thousand, four hundred eighty-five".

Divisors: 1 5 13460897 67304485