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68942711 = 197349963
BaseRepresentation
bin1000001101111…
…11101101110111
311210201122121202
410012333231313
5120122131321
610501403115
71465001105
oct406775567
9153648552
1068942711
1135a09752
121b10949b
131138b506
149228c75
1560bc70b
hex41bfb77

68942711 has 4 divisors (see below), whose sum is σ = 69292872. Its totient is φ = 68592552.

The previous prime is 68942677. The next prime is 68942723. The reversal of 68942711 is 11724986.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 68942711 - 210 = 68941687 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68942411) 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, 174785 + ... + 175178.

It is an arithmetic number, because the mean of its divisors is an integer number (17323218).

Almost surely, 268942711 is an apocalyptic number.

68942711 is a deficient number, since it is larger than the sum of its proper divisors (350161).

68942711 is a wasteful number, since it uses less digits than its factorization.

68942711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350160.

The product of its digits is 24192, while the sum is 38.

The square root of 68942711 is about 8303.1747542732. The cubic root of 68942711 is about 410.0430472351.

The spelling of 68942711 in words is "sixty-eight million, nine hundred forty-two thousand, seven hundred eleven".

Divisors: 1 197 349963 68942711