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68420348 = 22313311667
BaseRepresentation
bin1000001010000…
…00001011111100
311202202010001222
410011000023330
5120003422343
610442252512
71460364143
oct405001374
9152663058
1068420348
1135692247
121aab7138
1311237819
14913075a
156017a68
hex41402fc

68420348 has 24 divisors (see below), whose sum is σ = 124045824. Its totient is φ = 32986800.

The previous prime is 68420347. The next prime is 68420351. The reversal of 68420348 is 84302486.

It is a super-2 number, since 2×684203482 = 9362688040882208, which contains 22 as substring.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68420347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40211 + ... + 41877.

It is an arithmetic number, because the mean of its divisors is an integer number (5168576).

Almost surely, 268420348 is an apocalyptic number.

It is an amenable number.

68420348 is a deficient number, since it is larger than the sum of its proper divisors (55625476).

68420348 is a wasteful number, since it uses less digits than its factorization.

68420348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2033 (or 2031 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 35.

The square root of 68420348 is about 8271.6593256734. The cubic root of 68420348 is about 409.0048201758.

The spelling of 68420348 in words is "sixty-eight million, four hundred twenty thousand, three hundred forty-eight".

Divisors: 1 2 4 31 62 124 331 662 1324 1667 3334 6668 10261 20522 41044 51677 103354 206708 551777 1103554 2207108 17105087 34210174 68420348