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208201340 = 22579313421
BaseRepresentation
bin11000110100011…
…10011001111100
3112111202201112202
430122032121330
5411244420330
632354251032
75105452664
oct1432163174
9474681482
10208201340
11a7584826
1259886a78
1334199279
141d9191a4
1513429445
hexc68e67c

208201340 has 48 divisors (see below), whose sum is σ = 445226880. Its totient is φ = 81768960.

The previous prime is 208201337. The next prime is 208201351. The reversal of 208201340 is 43102802.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 494330 + ... + 494750.

It is an arithmetic number, because the mean of its divisors is an integer number (9275560).

Almost surely, 2208201340 is an apocalyptic number.

208201340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

208201340 is an abundant number, since it is smaller than the sum of its proper divisors (237025540).

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

208201340 is a wasteful number, since it uses less digits than its factorization.

208201340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 822 (or 820 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 208201340 is about 14429.1836220903. The cubic root of 208201340 is about 592.6903279780.

The spelling of 208201340 in words is "two hundred eight million, two hundred one thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 79 158 313 316 395 421 626 790 842 1252 1565 1580 1684 2105 3130 4210 6260 8420 24727 33259 49454 66518 98908 123635 131773 133036 166295 247270 263546 332590 494540 527092 658865 665180 1317730 2635460 10410067 20820134 41640268 52050335 104100670 208201340