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68943601 = 127619877
BaseRepresentation
bin1000001101111…
…11111011110001
311210201200211201
410012333323301
5120122143401
610501411201
71465003516
oct406777361
9153650751
1068943601
1135a0a391
121b109b01
131138ba3c
14922930d
1560bcb01
hex41bfef1

68943601 has 8 divisors (see below), whose sum is σ = 69678080. Its totient is φ = 68212368.

The previous prime is 68943599. The next prime is 68943607. The reversal of 68943601 is 10634986.

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

It is a cyclic number.

It is not a de Polignac number, because 68943601 - 21 = 68943599 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68943607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78175 + ... + 79051.

It is an arithmetic number, because the mean of its divisors is an integer number (8709760).

Almost surely, 268943601 is an apocalyptic number.

It is an amenable number.

68943601 is a deficient number, since it is larger than the sum of its proper divisors (734479).

68943601 is a wasteful number, since it uses less digits than its factorization.

68943601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1623.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 68943601 is about 8303.2283480584. The cubic root of 68943601 is about 410.0448116795.

The spelling of 68943601 in words is "sixty-eight million, nine hundred forty-three thousand, six hundred one".

Divisors: 1 127 619 877 78613 111379 542863 68943601