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68349370 = 256834937
BaseRepresentation
bin1000001001011…
…10110110111010
311202121111201011
410010232312322
5114444134440
610440544134
71456650205
oct404566672
9152544634
1068349370
1135643991
121aa8204a
131121141b
14911293c
1560019ea
hex412edba

68349370 has 8 divisors (see below), whose sum is σ = 123028884. Its totient is φ = 27339744.

The previous prime is 68349343. The next prime is 68349373. The reversal of 68349370 is 7394386.

It can be written as a sum of positive squares in 2 ways, for example, as 65496649 + 2852721 = 8093^2 + 1689^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (68349373) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3417459 + ... + 3417478.

Almost surely, 268349370 is an apocalyptic number.

68349370 is a deficient number, since it is larger than the sum of its proper divisors (54679514).

68349370 is a wasteful number, since it uses less digits than its factorization.

68349370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6834944.

The product of its (nonzero) digits is 108864, while the sum is 40.

The square root of 68349370 is about 8267.3677794084. The cubic root of 68349370 is about 408.8633399034.

The spelling of 68349370 in words is "sixty-eight million, three hundred forty-nine thousand, three hundred seventy".

Divisors: 1 2 5 10 6834937 13669874 34174685 68349370