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200420208 = 2432171931139
BaseRepresentation
bin10111111001000…
…10101101110000
3111222010101211200
423330202231300
5402301421313
631515411200
74652354322
oct1374425560
9458111750
10200420208
11a314a73a
1257153b00
13326a3651
141c891612
15128ddb73
hexbf22b70

200420208 has 240 divisors, whose sum is σ = 649958400. Its totient is φ = 57231360.

The previous prime is 200420161. The next prime is 200420221. The reversal of 200420208 is 802024002.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1441803 + ... + 1441941.

It is an arithmetic number, because the mean of its divisors is an integer number (2708160).

Almost surely, 2200420208 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 200420208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (324979200).

200420208 is an abundant number, since it is smaller than the sum of its proper divisors (449538192).

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

200420208 is a wasteful number, since it uses less digits than its factorization.

200420208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220 (or 211 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 200420208 is about 14156.9844246577. The cubic root of 200420208 is about 585.2128263545.

The spelling of 200420208 in words is "two hundred million, four hundred twenty thousand, two hundred eight".