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66395298 = 2338928447
BaseRepresentation
bin1111110101000…
…1110010100010
311121221020020010
43331101302202
5113444122143
610331025350
71434231204
oct375216242
9147836203
1066395298
1134529852
121a29b256
13109a8b78
148b64774
155c67a33
hex3f51ca2

66395298 has 16 divisors (see below), whose sum is σ = 133136640. Its totient is φ = 22074096.

The previous prime is 66395257. The next prime is 66395299. The reversal of 66395298 is 89259366.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (66395299) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11890 + ... + 16557.

It is an arithmetic number, because the mean of its divisors is an integer number (8321040).

Almost surely, 266395298 is an apocalyptic number.

66395298 is an abundant number, since it is smaller than the sum of its proper divisors (66741342).

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

66395298 is a wasteful number, since it uses less digits than its factorization.

66395298 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28841.

The product of its digits is 699840, while the sum is 48.

The square root of 66395298 is about 8148.3309947498. The cubic root of 66395298 is about 404.9292118316.

The spelling of 66395298 in words is "sixty-six million, three hundred ninety-five thousand, two hundred ninety-eight".

Divisors: 1 2 3 6 389 778 1167 2334 28447 56894 85341 170682 11065883 22131766 33197649 66395298