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68213424 = 2431421113
BaseRepresentation
bin1000001000011…
…01101010110000
311202100121020010
410010031222300
5114430312144
610434014520
71455542646
oct404155260
9152317203
1068213424
1135560834
121aa17440
1311194596
1490b9196
155ec65b9
hex410dab0

68213424 has 20 divisors (see below), whose sum is σ = 176218136. Its totient is φ = 22737792.

The previous prime is 68213413. The next prime is 68213443. The reversal of 68213424 is 42431286.

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

It is a junction number, because it is equal to n+sod(n) for n = 68213391 and 68213400.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 710509 + ... + 710604.

Almost surely, 268213424 is an apocalyptic number.

It is an amenable number.

68213424 is an abundant number, since it is smaller than the sum of its proper divisors (108004712).

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

68213424 is a wasteful number, since it uses less digits than its factorization.

68213424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1421124 (or 1421118 counting only the distinct ones).

The product of its digits is 9216, while the sum is 30.

The square root of 68213424 is about 8259.1418440417. The cubic root of 68213424 is about 408.5920853773.

The spelling of 68213424 in words is "sixty-eight million, two hundred thirteen thousand, four hundred twenty-four".

Divisors: 1 2 3 4 6 8 12 16 24 48 1421113 2842226 4263339 5684452 8526678 11368904 17053356 22737808 34106712 68213424