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200030445 = 3353147797
BaseRepresentation
bin10111110110000…
…11100011101101
3111221101121012000
423323003203231
5402201433240
631503202513
74646142066
oct1373034355
9457347160
10200030445
11a2a0391a
1256ba6439
1332598114
141c7cd56d
1512863430
hexbec38ed

200030445 has 32 divisors (see below), whose sum is σ = 367088640. Its totient is φ = 103239360.

The previous prime is 200030417. The next prime is 200030477. The reversal of 200030445 is 544030002.

It is a happy number.

It is not a de Polignac number, because 200030445 - 27 = 200030317 is a prime.

It is a Curzon number.

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 31 ways as a sum of consecutive naturals, for example, 19714 + ... + 28083.

It is an arithmetic number, because the mean of its divisors is an integer number (11471520).

Almost surely, 2200030445 is an apocalyptic number.

It is an amenable number.

200030445 is a deficient number, since it is larger than the sum of its proper divisors (167058195).

200030445 is a wasteful number, since it uses less digits than its factorization.

200030445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47842 (or 47836 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 200030445 is about 14143.2119760682. The cubic root of 200030445 is about 584.8332200437.

Adding to 200030445 its reverse (544030002), we get a palindrome (744060447).

The spelling of 200030445 in words is "two hundred million, thirty thousand, four hundred forty-five".

Divisors: 1 3 5 9 15 27 31 45 93 135 155 279 465 837 1395 4185 47797 143391 238985 430173 716955 1290519 1481707 2150865 4445121 6452595 7408535 13335363 22225605 40006089 66676815 200030445