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200812920 = 2335711103211
BaseRepresentation
bin10111111100000…
…10100101111000
3111222212100112120
423332002211320
5402402003140
631532041240
74655611260
oct1376024570
9458770476
10200812920
11a33987a0
1257303220
13327b0319
141c9547a0
151296a1d0
hexbf82978

200812920 has 256 divisors, whose sum is σ = 761978880. Its totient is φ = 41126400.

The previous prime is 200812901. The next prime is 200812933. The reversal of 200812920 is 29218002.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 951615 + ... + 951825.

It is an arithmetic number, because the mean of its divisors is an integer number (2976480).

Almost surely, 2200812920 is an apocalyptic number.

200812920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 200812920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (380989440).

200812920 is an abundant number, since it is smaller than the sum of its proper divisors (561165960).

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

200812920 is a wasteful number, since it uses less digits than its factorization.

200812920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346 (or 342 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 200812920 is about 14170.8475399321. The cubic root of 200812920 is about 585.5948073907.

The spelling of 200812920 in words is "two hundred million, eight hundred twelve thousand, nine hundred twenty".