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66315048 = 2332763127
BaseRepresentation
bin1111110011111…
…0001100101000
311121210011010220
43330332030220
5113434040143
610325210040
71433445222
oct374761450
9147704126
1066315048
1134484528
121a260920
131097b497
148b43412
155c4dd83
hex3f3e328

66315048 has 16 divisors (see below), whose sum is σ = 165787680. Its totient is φ = 22105008.

The previous prime is 66315047. The next prime is 66315061. The reversal of 66315048 is 84051366.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (66315043) 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, 1381540 + ... + 1381587.

It is an arithmetic number, because the mean of its divisors is an integer number (10361730).

Almost surely, 266315048 is an apocalyptic number.

It is an amenable number.

66315048 is an abundant number, since it is smaller than the sum of its proper divisors (99472632).

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

66315048 is a wasteful number, since it uses less digits than its factorization.

66315048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2763136 (or 2763132 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 66315048 is about 8143.4051845650. The cubic root of 66315048 is about 404.7660041389.

The spelling of 66315048 in words is "sixty-six million, three hundred fifteen thousand, forty-eight".

Divisors: 1 2 3 4 6 8 12 24 2763127 5526254 8289381 11052508 16578762 22105016 33157524 66315048