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67120238 = 2109307891
BaseRepresentation
bin1000000000000…
…10110001101110
311200022001122202
410000002301232
5114140321423
610354341502
71443340553
oct400026156
9150261582
1067120238
1134984479
121a58a892
1310ba0b23
148cb2a2a
155d5c728
hex4002c6e

67120238 has 8 divisors (see below), whose sum is σ = 101604360. Its totient is φ = 33252120.

The previous prime is 67120237. The next prime is 67120241. The reversal of 67120238 is 83202176.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 67120238.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67120237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 153728 + ... + 154163.

It is an arithmetic number, because the mean of its divisors is an integer number (12700545).

Almost surely, 267120238 is an apocalyptic number.

67120238 is a deficient number, since it is larger than the sum of its proper divisors (34484122).

67120238 is a wasteful number, since it uses less digits than its factorization.

67120238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308002.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 67120238 is about 8192.6941844548. The cubic root of 67120238 is about 406.3976262533.

The spelling of 67120238 in words is "sixty-seven million, one hundred twenty thousand, two hundred thirty-eight".

Divisors: 1 2 109 218 307891 615782 33560119 67120238