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68850545 = 517837723
BaseRepresentation
bin1000001101010…
…01001101110001
311210112222012012
410012221031301
5120111204140
610455412305
71464135311
oct406511561
9153488165
1068850545
1135956485
121b084095
131135858a
149203441
1560a0265
hex41a9371

68850545 has 8 divisors (see below), whose sum is σ = 82677696. Its totient is φ = 55042416.

The previous prime is 68850539. The next prime is 68850559. The reversal of 68850545 is 54505886.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-68850545 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5054 + ... + 12776.

It is an arithmetic number, because the mean of its divisors is an integer number (10334712).

Almost surely, 268850545 is an apocalyptic number.

It is an amenable number.

68850545 is a deficient number, since it is larger than the sum of its proper divisors (13827151).

68850545 is a wasteful number, since it uses less digits than its factorization.

68850545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9511.

The product of its (nonzero) digits is 192000, while the sum is 41.

The square root of 68850545 is about 8297.6228523596. The cubic root of 68850545 is about 409.8602438601.

The spelling of 68850545 in words is "sixty-eight million, eight hundred fifty thousand, five hundred forty-five".

Divisors: 1 5 1783 7723 8915 38615 13770109 68850545