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68413248 = 26355383
BaseRepresentation
bin1000001001111…
…10011101000000
311202201202100000
410010332131000
5120003210443
610442200000
71460334351
oct404763500
9152652300
1068413248
1135687982
121aab3000
1311234517
14912bd28
1560158d3
hex413e740

68413248 has 168 divisors, whose sum is σ = 209690208. Its totient is φ = 22104576.

The previous prime is 68413229. The next prime is 68413307. The reversal of 68413248 is 84231486.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 824215 + ... + 824297.

It is an arithmetic number, because the mean of its divisors is an integer number (1248156).

Almost surely, 268413248 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68413248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104845104).

68413248 is an abundant number, since it is smaller than the sum of its proper divisors (141276960).

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

68413248 is an equidigital number, since it uses as much as digits as its factorization.

68413248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163 (or 141 counting only the distinct ones).

The product of its digits is 36864, while the sum is 36.

The square root of 68413248 is about 8271.2301382563. The cubic root of 68413248 is about 408.9906721689.

The spelling of 68413248 in words is "sixty-eight million, four hundred thirteen thousand, two hundred forty-eight".