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67890016 = 258325561
BaseRepresentation
bin1000000101111…
…10101101100000
311201202011121001
410002332231200
5114334440031
610423041344
71453025035
oct402765540
9151664531
1067890016
113535a857
121a8a0254
13110b030c
14903338c
155e60861
hex40beb60

67890016 has 24 divisors (see below), whose sum is σ = 135274104. Its totient is φ = 33534720.

The previous prime is 67890007. The next prime is 67890029. The reversal of 67890016 is 61009876.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10125 + ... + 15436.

It is an arithmetic number, because the mean of its divisors is an integer number (5636421).

Almost surely, 267890016 is an apocalyptic number.

It is an amenable number.

67890016 is a deficient number, since it is larger than the sum of its proper divisors (67384088).

67890016 is a wasteful number, since it uses less digits than its factorization.

67890016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25654 (or 25646 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 67890016 is about 8239.5397929739. The cubic root of 67890016 is about 407.9453342113.

The spelling of 67890016 in words is "sixty-seven million, eight hundred ninety thousand, sixteen".

Divisors: 1 2 4 8 16 32 83 166 332 664 1328 2656 25561 51122 102244 204488 408976 817952 2121563 4243126 8486252 16972504 33945008 67890016