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67381338 = 2353211891
BaseRepresentation
bin1000000010000…
…10100001011010
311200210022211010
410001002201122
5114222200323
610404114350
71445506023
oct401024132
9150708733
1067381338
1135042662
121a6959b6
1310c6291b
148d3dc4a
155daec93
hex404285a

67381338 has 16 divisors (see below), whose sum is σ = 137306016. Its totient is φ = 22036560.

The previous prime is 67381333. The next prime is 67381351. The reversal of 67381338 is 83318376.

It is a junction number, because it is equal to n+sod(n) for n = 67381296 and 67381305.

It is not an unprimeable number, because it can be changed into a prime (67381333) 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, 105628 + ... + 106263.

It is an arithmetic number, because the mean of its divisors is an integer number (8581626).

Almost surely, 267381338 is an apocalyptic number.

67381338 is an abundant number, since it is smaller than the sum of its proper divisors (69924678).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

67381338 is a wasteful number, since it uses less digits than its factorization.

67381338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211949.

The product of its digits is 72576, while the sum is 39.

The square root of 67381338 is about 8208.6136466519. The cubic root of 67381338 is about 406.9239112651.

The spelling of 67381338 in words is "sixty-seven million, three hundred eighty-one thousand, three hundred thirty-eight".

Divisors: 1 2 3 6 53 106 159 318 211891 423782 635673 1271346 11230223 22460446 33690669 67381338