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66302068252 = 22743260921107
BaseRepresentation
bin111101101111111010…
…010100011000011100
320100010201001001011111
4331233322110120130
52041241312141002
650243031231404
74535012165350
oct755772243034
9210121031144
1066302068252
1126133875232
1210a24518564
136338299264
1432cd853460
151ad0b573d7
hexf6fe9461c

66302068252 has 48 divisors (see below), whose sum is σ = 135746392320. Its totient is φ = 27742401792.

The previous prime is 66302068229. The next prime is 66302068253. The reversal of 66302068252 is 25286020366.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66302068253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3130683 + ... + 3151789.

It is an arithmetic number, because the mean of its divisors is an integer number (2828049840).

Almost surely, 266302068252 is an apocalyptic number.

It is an amenable number.

66302068252 is an abundant number, since it is smaller than the sum of its proper divisors (69444324068).

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

66302068252 is a wasteful number, since it uses less digits than its factorization.

66302068252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23770 (or 23768 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 40.

The spelling of 66302068252 in words is "sixty-six billion, three hundred two million, sixty-eight thousand, two hundred fifty-two".

Divisors: 1 2 4 7 14 28 43 86 172 301 602 1204 2609 5218 10436 18263 21107 36526 42214 73052 84428 112187 147749 224374 295498 448748 590996 785309 907601 1570618 1815202 3141236 3630404 6353207 12706414 25412828 55068163 110136326 220272652 385477141 770954282 1541908564 2367931009 4735862018 9471724036 16575517063 33151034126 66302068252