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67030301 = 132396629
BaseRepresentation
bin1111111110110…
…0110100011101
311200010111021202
43333230310131
5114124432201
610352405245
71442514422
oct377546435
9150114252
1067030301
1134922948
121a546825
1310b6bc00
148c8bd49
155d40c6b
hex3fecd1d

67030301 has 6 divisors (see below), whose sum is σ = 72583290. Its totient is φ = 61873968.

The previous prime is 67030291. The next prime is 67030331. The reversal of 67030301 is 10303076.

It can be written as a sum of positive squares in 3 ways, for example, as 624100 + 66406201 = 790^2 + 8149^2 .

It is a de Polignac number, because none of the positive numbers 2k-67030301 is a prime.

It is a super-2 number, since 2×670303012 = 8986122504301202, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67030331) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 198146 + ... + 198483.

It is an arithmetic number, because the mean of its divisors is an integer number (12097215).

Almost surely, 267030301 is an apocalyptic number.

It is an amenable number.

67030301 is a deficient number, since it is larger than the sum of its proper divisors (5552989).

67030301 is a wasteful number, since it uses less digits than its factorization.

67030301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396655 (or 396642 counting only the distinct ones).

The product of its (nonzero) digits is 378, while the sum is 20.

The square root of 67030301 is about 8187.2034908142. The cubic root of 67030301 is about 406.2160291594.

Adding to 67030301 its reverse (10303076), we get a palindrome (77333377).

It can be divided in two parts, 6 and 7030301, that added together give a palindrome (7030307).

The spelling of 67030301 in words is "sixty-seven million, thirty thousand, three hundred one".

Divisors: 1 13 169 396629 5156177 67030301