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243401088 = 27372331127
BaseRepresentation
bin11101000001000…
…00000110000000
3121222000001112010
432200200012000
5444302313323
640052532520
76013606110
oct1640400600
9558001463
10243401088
11115436927
1269621140
133b571c18
142447d040
151657dc93
hexe820180

243401088 has 256 divisors, whose sum is σ = 802160640. Its totient is φ = 63866880.

The previous prime is 243401071. The next prime is 243401107. The reversal of 243401088 is 880104342.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1916481 + ... + 1916607.

It is an arithmetic number, because the mean of its divisors is an integer number (3133440).

Almost surely, 2243401088 is an apocalyptic number.

243401088 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 243401088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (401080320).

243401088 is an abundant number, since it is smaller than the sum of its proper divisors (558759552).

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

243401088 is a wasteful number, since it uses less digits than its factorization.

243401088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205 (or 193 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 243401088 is about 15601.3168674955. The cubic root of 243401088 is about 624.3682901500.

The spelling of 243401088 in words is "two hundred forty-three million, four hundred one thousand, eighty-eight".