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208870268 = 2219323331
BaseRepresentation
bin11000111001100…
…01101101111100
3112120000201010212
430130301231330
5411432322033
632420451552
75114240135
oct1434615574
9476021125
10208870268
11a79a1362
1259b49bb8
1334371899
141da50c8c
151350c748
hexc731b7c

208870268 has 48 divisors (see below), whose sum is σ = 403818240. Its totient is φ = 94350960.

The previous prime is 208870253. The next prime is 208870271. The reversal of 208870268 is 862078802.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 630863 + ... + 631193.

It is an arithmetic number, because the mean of its divisors is an integer number (8412880).

Almost surely, 2208870268 is an apocalyptic number.

It is an amenable number.

208870268 is a deficient number, since it is larger than the sum of its proper divisors (194947972).

208870268 is a wasteful number, since it uses less digits than its factorization.

208870268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415 (or 375 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 41.

The square root of 208870268 is about 14452.3447232620. The cubic root of 208870268 is about 593.3243990014.

The spelling of 208870268 in words is "two hundred eight million, eight hundred seventy thousand, two hundred sixty-eight".

Divisors: 1 2 4 19 23 38 46 76 92 331 361 437 662 722 874 1324 1444 1748 6289 6859 7613 8303 12578 13718 15226 16606 25156 27436 30452 33212 119491 144647 157757 238982 289294 315514 477964 578588 631028 2270329 2748293 4540658 5496586 9081316 10993172 52217567 104435134 208870268