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67868214 = 2322934933
BaseRepresentation
bin1000000101110…
…01011000110110
311201201001200120
410002321120312
5114333240324
610422352410
71452604341
oct402713066
9151631616
1067868214
1135345437
121a88b706
13110a340b
149029458
155e59179
hex40b9636

67868214 has 16 divisors (see below), whose sum is σ = 135823152. Its totient is φ = 22608288.

The previous prime is 67868201. The next prime is 67868219. The reversal of 67868214 is 41286876.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67868219) 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, 11292 + ... + 16224.

It is an arithmetic number, because the mean of its divisors is an integer number (8488947).

Almost surely, 267868214 is an apocalyptic number.

67868214 is an abundant number, since it is smaller than the sum of its proper divisors (67954938).

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

67868214 is a wasteful number, since it uses less digits than its factorization.

67868214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7231.

The product of its digits is 129024, while the sum is 42.

The square root of 67868214 is about 8238.2166759560. The cubic root of 67868214 is about 407.9016607477.

The spelling of 67868214 in words is "sixty-seven million, eight hundred sixty-eight thousand, two hundred fourteen".

Divisors: 1 2 3 6 2293 4586 4933 6879 9866 13758 14799 29598 11311369 22622738 33934107 67868214