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83255047 = 557314939
BaseRepresentation
bin1001111011001…
…01111100000111
312210122210110021
410331211330013
5132303130142
612132240011
72030441041
oct475457407
9183583407
1083255047
1142aa4827
1223a70007
131432cb55
14b0b2a91
157498267
hex4f65f07

83255047 has 4 divisors (see below), whose sum is σ = 83275560. Its totient is φ = 83234536.

The previous prime is 83254991. The next prime is 83255063. The reversal of 83255047 is 74055238.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 83255047 - 211 = 83252999 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 (83255087) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1897 + ... + 13042.

It is an arithmetic number, because the mean of its divisors is an integer number (20818890).

Almost surely, 283255047 is an apocalyptic number.

83255047 is a deficient number, since it is larger than the sum of its proper divisors (20513).

83255047 is a wasteful number, since it uses less digits than its factorization.

83255047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20512.

The product of its (nonzero) digits is 33600, while the sum is 34.

The square root of 83255047 is about 9124.4203651520. The cubic root of 83255047 is about 436.6534106912.

The spelling of 83255047 in words is "eighty-three million, two hundred fifty-five thousand, forty-seven".

Divisors: 1 5573 14939 83255047