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67004038 = 2179472081
BaseRepresentation
bin1111111110011…
…0011010000110
311200002011021001
43333212122012
5114123112123
610352043514
71442345023
oct377463206
9150064231
1067004038
1134905142
121a53359a
1310b5cc7a
148c8254a
155d380ad
hex3fe6686

67004038 has 16 divisors (see below), whose sum is σ = 106581744. Its totient is φ = 31482880.

The previous prime is 67004033. The next prime is 67004039. The reversal of 67004038 is 83040076.

It is a super-2 number, since 2×670040382 = 8979082216610888, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 67003997 and 67004015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67004033) 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, 31158 + ... + 33238.

It is an arithmetic number, because the mean of its divisors is an integer number (6661359).

Almost surely, 267004038 is an apocalyptic number.

67004038 is a deficient number, since it is larger than the sum of its proper divisors (39577706).

67004038 is a wasteful number, since it uses less digits than its factorization.

67004038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3047.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 67004038 is about 8185.5994282642. The cubic root of 67004038 is about 406.1629693489.

The spelling of 67004038 in words is "sixty-seven million, four thousand, thirty-eight".

Divisors: 1 2 17 34 947 1894 2081 4162 16099 32198 35377 70754 1970707 3941414 33502019 67004038