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200030809 = 1134915209
BaseRepresentation
bin10111110110000…
…11101001011001
3111221101121200111
423323003221121
5402201441214
631503204321
74646143126
oct1373035131
9457347614
10200030809
11a2a04120
1256ba66a1
1332598334
141c7cd74d
15128635c4
hexbec3a59

200030809 has 8 divisors (see below), whose sum is σ = 218319840. Its totient is φ = 181759200.

The previous prime is 200030801. The next prime is 200030837. The reversal of 200030809 is 908030002.

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

It is a cyclic number.

It is not a de Polignac number, because 200030809 - 23 = 200030801 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 200030809.

It is not an unprimeable number, because it can be changed into a prime (200030801) 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, 35797 + ... + 41005.

It is an arithmetic number, because the mean of its divisors is an integer number (27289980).

Almost surely, 2200030809 is an apocalyptic number.

It is an amenable number.

200030809 is a deficient number, since it is larger than the sum of its proper divisors (18289031).

200030809 is a wasteful number, since it uses less digits than its factorization.

200030809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8711.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 200030809 is about 14143.2248444264. The cubic root of 200030809 is about 584.8335747883.

The spelling of 200030809 in words is "two hundred million, thirty thousand, eight hundred nine".

Divisors: 1 11 3491 5209 38401 57299 18184619 200030809