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208208944 = 2413013059
BaseRepresentation
bin11000110100100…
…00010000110000
3112111210002222101
430122100100300
5411300141234
632354350144
75105514106
oct1432202060
9474702871
10208208944
11a758a509
125988b354
133419c878
141d91bc76
151342b814
hexc690430

208208944 has 10 divisors (see below), whose sum is σ = 403404860. Its totient is φ = 104104464.

The previous prime is 208208929. The next prime is 208208977. The reversal of 208208944 is 449802802.

It is a super-4 number, since 4×2082089444 (a number of 34 digits) contains 4444 as substring. Note that it is a super-d number also for d = 3.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6506514 + ... + 6506545.

It is an arithmetic number, because the mean of its divisors is an integer number (40340486).

Almost surely, 2208208944 is an apocalyptic number.

It is an amenable number.

208208944 is a deficient number, since it is larger than the sum of its proper divisors (195195916).

208208944 is a wasteful number, since it uses less digits than its factorization.

208208944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13013067 (or 13013061 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 37.

The square root of 208208944 is about 14429.4471134552. The cubic root of 208208944 is about 592.6975433692.

The spelling of 208208944 in words is "two hundred eight million, two hundred eight thousand, nine hundred forty-four".

Divisors: 1 2 4 8 16 13013059 26026118 52052236 104104472 208208944