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208049944 = 23172292107
BaseRepresentation
bin11000110011010…
…01011100011000
3112111111000212111
430121221130120
5411230044234
632351122104
75104252414
oct1431513430
9474430774
10208049944
11a7491003
1259813334
133414539b
141d8b9d44
15133e9664
hexc669718

208049944 has 72 divisors (see below), whose sum is σ = 433183140. Its totient is φ = 93646336.

The previous prime is 208049929. The next prime is 208049977. The reversal of 208049944 is 449940802.

It is a junction number, because it is equal to n+sod(n) for n = 208049897 and 208049906.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1944339 + ... + 1944445.

Almost surely, 2208049944 is an apocalyptic number.

It is an amenable number.

208049944 is an abundant number, since it is smaller than the sum of its proper divisors (225133196).

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

208049944 is a wasteful number, since it uses less digits than its factorization.

208049944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205 (or 155 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 40.

The square root of 208049944 is about 14423.9364945912. The cubic root of 208049944 is about 592.5466326119.

The spelling of 208049944 in words is "two hundred eight million, forty-nine thousand, nine hundred forty-four".

Divisors: 1 2 4 8 17 29 34 58 68 107 116 136 214 232 289 428 493 578 841 856 986 1156 1682 1819 1972 2312 3103 3364 3638 3944 6206 6728 7276 8381 12412 14297 14552 16762 24824 28594 30923 33524 52751 57188 61846 67048 89987 105502 114376 123692 179974 211004 243049 247384 359948 422008 486098 719896 896767 972196 1529779 1793534 1944392 3059558 3587068 6119116 7174136 12238232 26006243 52012486 104024972 208049944