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83013545 = 540214129
BaseRepresentation
bin1001111001010…
…10111110101001
312210012112011202
410330222332221
5132222413140
612123133545
72025413666
oct474527651
9183175152
1083013545
114294a33a
12239742b5
1314276c54
14b04ca6d
15744b915
hex4f2afa9

83013545 has 8 divisors (see below), whose sum is σ = 99665160. Its totient is φ = 66378240.

The previous prime is 83013523. The next prime is 83013559. The reversal of 83013545 is 54531038.

It can be written as a sum of positive squares in 4 ways, for example, as 512656 + 82500889 = 716^2 + 9083^2 .

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

It is not a de Polignac number, because 83013545 - 28 = 83013289 is a prime.

It is a Curzon 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, 18041 + ... + 22169.

It is an arithmetic number, because the mean of its divisors is an integer number (12458145).

Almost surely, 283013545 is an apocalyptic number.

It is an amenable number.

83013545 is a deficient number, since it is larger than the sum of its proper divisors (16651615).

83013545 is a wasteful number, since it uses less digits than its factorization.

83013545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8155.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 83013545 is about 9111.1769272691. The cubic root of 83013545 is about 436.2307944682.

The spelling of 83013545 in words is "eighty-three million, thirteen thousand, five hundred forty-five".

Divisors: 1 5 4021 4129 20105 20645 16602709 83013545