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68100070 = 2541916253
BaseRepresentation
bin1000000111100…
…01111111100110
311202010211201211
410003301333212
5114413200240
610431342034
71454561323
oct403617746
9152124654
1068100070
1135493655
121a98191a
1311154acc
149089b4a
155ea2bea
hex40f1fe6

68100070 has 16 divisors (see below), whose sum is σ = 122880240. Its totient is φ = 27173344.

The previous prime is 68100061. The next prime is 68100077. The reversal of 68100070 is 7000186.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68100077) 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, 3937 + ... + 12316.

It is an arithmetic number, because the mean of its divisors is an integer number (7680015).

Almost surely, 268100070 is an apocalyptic number.

68100070 is a deficient number, since it is larger than the sum of its proper divisors (54780170).

68100070 is a wasteful number, since it uses less digits than its factorization.

68100070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16679.

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 68100070 is about 8252.2766555660. The cubic root of 68100070 is about 408.3656332448.

The spelling of 68100070 in words is "sixty-eight million, one hundred thousand, seventy".

Divisors: 1 2 5 10 419 838 2095 4190 16253 32506 81265 162530 6810007 13620014 34050035 68100070