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208423488 = 26371379151
BaseRepresentation
bin11000110110001…
…00101001000000
3112112012000021110
430123010221000
5411324022423
632403123320
75110366440
oct1433045100
9475160243
10208423488
11a7716719
1259973540
1334246410
141d976120
1513470193
hexc6c4a40

208423488 has 224 divisors, whose sum is σ = 691855360. Its totient is φ = 53913600.

The previous prime is 208423463. The next prime is 208423513. The reversal of 208423488 is 884324802.

It is an interprime number because it is at equal distance from previous prime (208423463) and next prime (208423513).

It is a tau number, because it is divible by the number of its divisors (224).

It is a super-2 number, since 2×2084234882 = 86880700700172288, which contains 22 as substring.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1380213 + ... + 1380363.

It is an arithmetic number, because the mean of its divisors is an integer number (3088640).

Almost surely, 2208423488 is an apocalyptic number.

208423488 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 208423488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (345927680).

208423488 is an abundant number, since it is smaller than the sum of its proper divisors (483431872).

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

208423488 is a wasteful number, since it uses less digits than its factorization.

208423488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265 (or 255 counting only the distinct ones).

The product of its (nonzero) digits is 98304, while the sum is 39.

The square root of 208423488 is about 14436.8794412089. The cubic root of 208423488 is about 592.9010505578.

The spelling of 208423488 in words is "two hundred eight million, four hundred twenty-three thousand, four hundred eighty-eight".