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66016692 = 22327261971
BaseRepresentation
bin1111101111010…
…1010110110100
311121012222212200
43323311112310
5113400013232
610314544500
71431063330
oct373652664
9147188780
1066016692
11342a0355
121a138130
13108a5741
148aa67c0
155be077c
hex3ef55b4

66016692 has 36 divisors (see below), whose sum is σ = 190715616. Its totient is φ = 18861840.

The previous prime is 66016681. The next prime is 66016751. The reversal of 66016692 is 29661066.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 130734 + ... + 131237.

It is an arithmetic number, because the mean of its divisors is an integer number (5297656).

Almost surely, 266016692 is an apocalyptic number.

It is an amenable number.

66016692 is an abundant number, since it is smaller than the sum of its proper divisors (124698924).

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

66016692 is a wasteful number, since it uses less digits than its factorization.

66016692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261988 (or 261983 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 66016692 is about 8125.0656612731. The cubic root of 66016692 is about 404.1580680685.

The spelling of 66016692 in words is "sixty-six million, sixteen thousand, six hundred ninety-two".

Divisors: 1 2 3 4 6 7 9 12 14 18 21 28 36 42 63 84 126 252 261971 523942 785913 1047884 1571826 1833797 2357739 3143652 3667594 4715478 5501391 7335188 9430956 11002782 16504173 22005564 33008346 66016692