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68544901 = 1726315331
BaseRepresentation
bin1000001010111…
…10100110000101
311202222102221001
410011132212011
5120021414101
610445053301
71461423235
oct405364605
9152872831
1068544901
1135767887
121ab57231
131127c419
149163cc5
15603e901
hex415e985

68544901 has 8 divisors (see below), whose sum is σ = 72857664. Its totient is φ = 64263360.

The previous prime is 68544887. The next prime is 68544943. The reversal of 68544901 is 10944586.

It is a happy number.

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 68544901 - 25 = 68544869 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 (68544101) 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, 3195 + ... + 12136.

It is an arithmetic number, because the mean of its divisors is an integer number (9107208).

Almost surely, 268544901 is an apocalyptic number.

It is an amenable number.

68544901 is a deficient number, since it is larger than the sum of its proper divisors (4312763).

68544901 is a wasteful number, since it uses less digits than its factorization.

68544901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15611.

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 68544901 is about 8279.1848028656. The cubic root of 68544901 is about 409.2528550458.

The spelling of 68544901 in words is "sixty-eight million, five hundred forty-four thousand, nine hundred one".

Divisors: 1 17 263 4471 15331 260627 4032053 68544901