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200672720 = 2452508409
BaseRepresentation
bin10111111011000…
…00010111010000
3111222121020012222
423331200113100
5402333011340
631525040212
74654455443
oct1375402720
9458536188
10200672720
11a3302426
1257256068
1332761571
141c91965a
151293d8b5
hexbf605d0

200672720 has 20 divisors (see below), whose sum is σ = 466564260. Its totient is φ = 80269056.

The previous prime is 200672713. The next prime is 200672761. The reversal of 200672720 is 27276002.

200672720 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 75411856 + 125260864 = 8684^2 + 11192^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a self number, because there is not a number n which added to its sum of digits gives 200672720.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1254125 + ... + 1254284.

It is an arithmetic number, because the mean of its divisors is an integer number (23328213).

Almost surely, 2200672720 is an apocalyptic number.

200672720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200672720 is an abundant number, since it is smaller than the sum of its proper divisors (265891540).

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

200672720 is a wasteful number, since it uses less digits than its factorization.

200672720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2508422 (or 2508416 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 26.

The square root of 200672720 is about 14165.8999008182. The cubic root of 200672720 is about 585.4584956005.

The spelling of 200672720 in words is "two hundred million, six hundred seventy-two thousand, seven hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 80 2508409 5016818 10033636 12542045 20067272 25084090 40134544 50168180 100336360 200672720