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68493222 = 2337181199
BaseRepresentation
bin1000001010100…
…01111110100110
311202212211001000
410011101332212
5120013240342
610444014130
71461116460
oct405217646
9152784030
1068493222
1135731a76
121ab31346
1311261a45
14914d130
15602e44c
hex4151fa6

68493222 has 32 divisors (see below), whose sum is σ = 173952000. Its totient is φ = 19569384.

The previous prime is 68493197. The next prime is 68493263. The reversal of 68493222 is 22239486.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90222 + ... + 90977.

It is an arithmetic number, because the mean of its divisors is an integer number (5436000).

Almost surely, 268493222 is an apocalyptic number.

68493222 is an abundant number, since it is smaller than the sum of its proper divisors (105458778).

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

68493222 is a wasteful number, since it uses less digits than its factorization.

68493222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181217 (or 181211 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 68493222 is about 8276.0631945388. The cubic root of 68493222 is about 409.1499779756.

The spelling of 68493222 in words is "sixty-eight million, four hundred ninety-three thousand, two hundred twenty-two".

Divisors: 1 2 3 6 7 9 14 18 21 27 42 54 63 126 189 378 181199 362398 543597 1087194 1268393 1630791 2536786 3261582 3805179 4892373 7610358 9784746 11415537 22831074 34246611 68493222