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68544001 = 194776757
BaseRepresentation
bin1000001010111…
…10011000000001
311202222101200201
410011132120001
5120021402001
610445045201
71461420511
oct405363001
9152871621
1068544001
1135767139
121ab56801
131127bba6
149163841
15603e501
hex415e601

68544001 has 8 divisors (see below), whose sum is σ = 73687680. Its totient is φ = 63553968.

The previous prime is 68543989. The next prime is 68544011. The reversal of 68544001 is 10044586.

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 68544001 - 219 = 68019713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68544011) 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, 37486 + ... + 39271.

It is an arithmetic number, because the mean of its divisors is an integer number (9210960).

Almost surely, 268544001 is an apocalyptic number.

It is an amenable number.

68544001 is a deficient number, since it is larger than the sum of its proper divisors (5143679).

68544001 is a wasteful number, since it uses less digits than its factorization.

68544001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76823.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 68544001 is about 8279.1304495098. The cubic root of 68544001 is about 409.2510638638.

Adding to 68544001 its reverse (10044586), we get a palindrome (78588587).

The spelling of 68544001 in words is "sixty-eight million, five hundred forty-four thousand, one".

Divisors: 1 19 47 893 76757 1458383 3607579 68544001