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200109445 = 5351111399
BaseRepresentation
bin10111110110101…
…10110110000101
3111221112121112221
423323112312011
5402212000240
631505012341
74646621314
oct1373266605
9457477487
10200109445
11a2a58208
12570240b1
13325c5073
141c81027b
151287ba4a
hexbed6d85

200109445 has 8 divisors (see below), whose sum is σ = 240220800. Its totient is φ = 160027920.

The previous prime is 200109439. The next prime is 200109473. The reversal of 200109445 is 544901002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 200109445 - 215 = 200076677 is a prime.

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 7 ways as a sum of consecutive naturals, for example, 11856 + ... + 23254.

It is an arithmetic number, because the mean of its divisors is an integer number (30027600).

Almost surely, 2200109445 is an apocalyptic number.

It is an amenable number.

200109445 is a deficient number, since it is larger than the sum of its proper divisors (40111355).

200109445 is a wasteful number, since it uses less digits than its factorization.

200109445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14915.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 200109445 is about 14146.0045595921. The cubic root of 200109445 is about 584.9102012309.

The spelling of 200109445 in words is "two hundred million, one hundred nine thousand, four hundred forty-five".

Divisors: 1 5 3511 11399 17555 56995 40021889 200109445