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68949468 = 22347243101
BaseRepresentation
bin1000001110000…
…01010111011100
311210201222220000
410013001113130
5120122340333
610501454300
71465026600
oct407012734
9153658800
1068949468
1135a13835
121b111390
1311391603
14922b500
1560be713
hex41c15dc

68949468 has 180 divisors, whose sum is σ = 216676152. Its totient is φ = 19051200.

The previous prime is 68949403. The next prime is 68949479. The reversal of 68949468 is 86494986.

It is a super-3 number, since 3×689494683 (a number of 24 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 682618 + ... + 682718.

Almost surely, 268949468 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 68949468, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108338076).

68949468 is an abundant number, since it is smaller than the sum of its proper divisors (147726684).

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

68949468 is a wasteful number, since it uses less digits than its factorization.

68949468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174 (or 156 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 54.

The square root of 68949468 is about 8303.5816368601. The cubic root of 68949468 is about 410.0564427549.

The spelling of 68949468 in words is "sixty-eight million, nine hundred forty-nine thousand, four hundred sixty-eight".