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66062072 = 2323477639
BaseRepresentation
bin1111110000000…
…0011011111000
311121022022010102
43330000123320
5113402441242
610315534532
71431342536
oct374003370
9147268112
1066062072
113432145a
121a15a448
13108c02ab
148ab9156
155bede32
hex3f006f8

66062072 has 32 divisors (see below), whose sum is σ = 132019200. Its totient is φ = 30918624.

The previous prime is 66062071. The next prime is 66062077. The reversal of 66062072 is 27026066.

66062072 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66062071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4829 + ... + 12467.

It is an arithmetic number, because the mean of its divisors is an integer number (4125600).

Almost surely, 266062072 is an apocalyptic number.

It is an amenable number.

66062072 is a deficient number, since it is larger than the sum of its proper divisors (65957128).

66062072 is a wasteful number, since it uses less digits than its factorization.

66062072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7715 (or 7711 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 66062072 is about 8127.8577743462. The cubic root of 66062072 is about 404.2506531996.

The spelling of 66062072 in words is "sixty-six million, sixty-two thousand, seventy-two".

Divisors: 1 2 4 8 23 46 47 92 94 184 188 376 1081 2162 4324 7639 8648 15278 30556 61112 175697 351394 359033 702788 718066 1405576 1436132 2872264 8257759 16515518 33031036 66062072