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224137680 = 243513192199
BaseRepresentation
bin11010101110000…
…01000111010000
3120121202101002120
431113001013100
5424334401210
634124014240
75361065424
oct1527010720
9517671076
10224137680
11105579a58
1263091380
1337588b60
1421aa6b84
1514a26270
hexd5c11d0

224137680 has 240 divisors, whose sum is σ = 793699200. Its totient is φ = 52005888.

The previous prime is 224137651. The next prime is 224137709. The reversal of 224137680 is 86731422.

224137680 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (224137651) and next prime (224137709).

It is a tau number, because it is divible by the number of its divisors (240).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1126221 + ... + 1126419.

It is an arithmetic number, because the mean of its divisors is an integer number (3307080).

Almost surely, 2224137680 is an apocalyptic number.

224137680 is a gapful number since it is divisible by the number (20) 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 224137680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (396849600).

224137680 is an abundant number, since it is smaller than the sum of its proper divisors (569561520).

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

224137680 is a wasteful number, since it uses less digits than its factorization.

224137680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266 (or 241 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 224137680 is about 14971.2284065136. The cubic root of 224137680 is about 607.4421967390.

The spelling of 224137680 in words is "two hundred twenty-four million, one hundred thirty-seven thousand, six hundred eighty".