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67057142 = 253336287
BaseRepresentation
bin1111111111001…
…1010111110110
311200011212002212
43333303113312
5114131312032
610353133422
71442655605
oct377632766
9150155085
1067057142
1134941029
121a55a272
1310b7b1a9
148c97a3c
155d48bb2
hex3ff35f6

67057142 has 8 divisors (see below), whose sum is σ = 100620576. Its totient is φ = 33516952.

The previous prime is 67057141. The next prime is 67057147. The reversal of 67057142 is 24175076.

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

It is a junction number, because it is equal to n+sod(n) for n = 67057099 and 67057108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67057141) 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, 7523 + ... + 13809.

It is an arithmetic number, because the mean of its divisors is an integer number (12577572).

Almost surely, 267057142 is an apocalyptic number.

67057142 is a deficient number, since it is larger than the sum of its proper divisors (33563434).

67057142 is a wasteful number, since it uses less digits than its factorization.

67057142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11622.

The product of its (nonzero) digits is 11760, while the sum is 32.

The square root of 67057142 is about 8188.8425311518. The cubic root of 67057142 is about 406.2702423996.

The spelling of 67057142 in words is "sixty-seven million, fifty-seven thousand, one hundred forty-two".

Divisors: 1 2 5333 6287 10666 12574 33528571 67057142