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200838 = 231117179
BaseRepresentation
bin110001000010000110
3101012111110
4301002012
522411323
64145450
71464351
oct610206
9335443
10200838
11127990
1298286
1370551
1453298
153e793
hex31086

200838 has 32 divisors (see below), whose sum is σ = 466560. Its totient is φ = 56960.

The previous prime is 200807. The next prime is 200843. The reversal of 200838 is 838002.

It is a congruent number.

It is an unprimeable number.

200838 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1033 + ... + 1211.

It is an arithmetic number, because the mean of its divisors is an integer number (14580).

2200838 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 200838, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (233280).

200838 is an abundant number, since it is smaller than the sum of its proper divisors (265722).

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

200838 is a wasteful number, since it uses less digits than its factorization.

200838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 200838 is about 448.1495286174. The cubic root of 200838 is about 58.5619185149.

The spelling of 200838 in words is "two hundred thousand, eight hundred thirty-eight".

Divisors: 1 2 3 6 11 17 22 33 34 51 66 102 179 187 358 374 537 561 1074 1122 1969 3043 3938 5907 6086 9129 11814 18258 33473 66946 100419 200838