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68050553 = 4310914519
BaseRepresentation
bin1000000111001…
…01111001111001
311202001022210212
410003211321321
5114410104203
610430320505
71454264054
oct403457171
9152038725
1068050553
113545a42a
121a959135
13111383cc
149075a9b
155e931d8
hex40e5e79

68050553 has 8 divisors (see below), whose sum is σ = 70276800. Its totient is φ = 65853648.

The previous prime is 68050481. The next prime is 68050561. The reversal of 68050553 is 35505086.

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 68050553 - 224 = 51273337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68050453) 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, 2573 + ... + 11946.

It is an arithmetic number, because the mean of its divisors is an integer number (8784600).

Almost surely, 268050553 is an apocalyptic number.

It is an amenable number.

68050553 is a deficient number, since it is larger than the sum of its proper divisors (2226247).

68050553 is a wasteful number, since it uses less digits than its factorization.

68050553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14671.

The product of its (nonzero) digits is 18000, while the sum is 32.

The square root of 68050553 is about 8249.2759076176. The cubic root of 68050553 is about 408.2666321518.

The spelling of 68050553 in words is "sixty-eight million, fifty thousand, five hundred fifty-three".

Divisors: 1 43 109 4687 14519 624317 1582571 68050553