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67216052 = 2243390791
BaseRepresentation
bin1000000000110…
…10001010110100
311200110221002102
410000122022310
5114201403202
610400401232
71444220111
oct400321264
9150427072
1067216052
1134a3a462
121a616218
1310c05617
148cd9908
155d7ad02
hex401a2b4

67216052 has 12 divisors (see below), whose sum is σ = 120363936. Its totient is φ = 32826360.

The previous prime is 67216033. The next prime is 67216057. The reversal of 67216052 is 25061276.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67216057) 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, 195224 + ... + 195567.

It is an arithmetic number, because the mean of its divisors is an integer number (10030328).

Almost surely, 267216052 is an apocalyptic number.

It is an amenable number.

67216052 is a deficient number, since it is larger than the sum of its proper divisors (53147884).

67216052 is a wasteful number, since it uses less digits than its factorization.

67216052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390838 (or 390836 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 67216052 is about 8198.5396260554. The cubic root of 67216052 is about 406.5909115661.

The spelling of 67216052 in words is "sixty-seven million, two hundred sixteen thousand, fifty-two".

Divisors: 1 2 4 43 86 172 390791 781582 1563164 16804013 33608026 67216052