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445874292985 = 51152116699323
BaseRepresentation
bin1100111110100000010…
…11011100100011111001
31120121212202010220120011
412133100023130203321
524301122304333420
6540455401301521
744133115646302
oct6372013344371
91517782126504
10445874292985
11162104461730
12724b64948a1
1333079714bc4
141781a9b97a9
15b8e8e8695a
hex67d02dc8f9

445874292985 has 32 divisors (see below), whose sum is σ = 585223470720. Its totient is φ = 323421196800.

The previous prime is 445874292923. The next prime is 445874293001. The reversal of 445874292985 is 589292478544.

It is not a de Polignac number, because 445874292985 - 211 = 445874290937 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 445874292985.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 47820534 + ... + 47829856.

It is an arithmetic number, because the mean of its divisors is an integer number (18288233460).

Almost surely, 2445874292985 is an apocalyptic number.

It is an amenable number.

445874292985 is a deficient number, since it is larger than the sum of its proper divisors (139349177735).

445874292985 is a wasteful number, since it uses less digits than its factorization.

445874292985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11529.

The product of its digits is 232243200, while the sum is 67.

The spelling of 445874292985 in words is "four hundred forty-five billion, eight hundred seventy-four million, two hundred ninety-two thousand, nine hundred eighty-five".

Divisors: 1 5 11 55 521 1669 2605 5731 8345 9323 18359 28655 46615 91795 102553 512765 869549 4347745 4857283 9565039 15560087 24286415 47825195 53430113 77800435 171160957 267150565 855804785 8106805327 40534026635 89174858597 445874292985