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200545408 = 277223823
BaseRepresentation
bin10111111010000…
…01010010000000
3111222100202120201
423331001102000
5402314423113
631522214544
74653415330
oct1375012200
9458322521
10200545408
11a3225808
12571b4454
133271862b
141c8c50c0
1512915cdd
hexbf41480

200545408 has 32 divisors (see below), whose sum is σ = 456600960. Its totient is φ = 85947648.

The previous prime is 200545357. The next prime is 200545427. The reversal of 200545408 is 804545002.

It is a tau number, because it is divible by the number of its divisors (32).

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111016 + ... + 112807.

It is an arithmetic number, because the mean of its divisors is an integer number (14268780).

Almost surely, 2200545408 is an apocalyptic number.

200545408 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

200545408 is an abundant number, since it is smaller than the sum of its proper divisors (256055552).

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

200545408 is an equidigital number, since it uses as much as digits as its factorization.

200545408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223844 (or 223832 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 28.

The square root of 200545408 is about 14161.4055799557. The cubic root of 200545408 is about 585.3346593693.

The spelling of 200545408 in words is "two hundred million, five hundred forty-five thousand, four hundred eight".

Divisors: 1 2 4 7 8 14 16 28 32 56 64 112 128 224 448 896 223823 447646 895292 1566761 1790584 3133522 3581168 6267044 7162336 12534088 14324672 25068176 28649344 50136352 100272704 200545408