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68233217 = 1337433299
BaseRepresentation
bin1000001000100…
…10100000000001
311202101121101012
410010102200001
5114431430332
610434250305
71455654443
oct404224001
9152347335
1068233217
1135574698
121aa26995
13111a05b0
1490c2493
155ecc3b2
hex4112801

68233217 has 16 divisors (see below), whose sum is σ = 77246400. Its totient is φ = 59838912.

The previous prime is 68233213. The next prime is 68233219. The reversal of 68233217 is 71233286.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 68233217 - 22 = 68233213 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68233211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19034 + ... + 22332.

It is an arithmetic number, because the mean of its divisors is an integer number (4827900).

Almost surely, 268233217 is an apocalyptic number.

It is an amenable number.

68233217 is a deficient number, since it is larger than the sum of its proper divisors (9013183).

68233217 is a wasteful number, since it uses less digits than its factorization.

68233217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3392.

The product of its digits is 12096, while the sum is 32.

The square root of 68233217 is about 8260.3400051087. The cubic root of 68233217 is about 408.6316009672.

The spelling of 68233217 in words is "sixty-eight million, two hundred thirty-three thousand, two hundred seventeen".

Divisors: 1 13 37 43 481 559 1591 3299 20683 42887 122063 141857 1586819 1844141 5248709 68233217