Search a number
-
+
83028239 = 741289297
BaseRepresentation
bin1001111001011…
…10100100001111
312210020021022222
410330232210033
5132223400424
612123325555
72025504560
oct474564417
9183207288
1083028239
114295a388
12239808bb
1314280848
14b054167
157450e5e
hex4f2e90f

83028239 has 8 divisors (see below), whose sum is σ = 97204128. Its totient is φ = 69431040.

The previous prime is 83028223. The next prime is 83028241. The reversal of 83028239 is 93282038.

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

It is not a de Polignac number, because 83028239 - 24 = 83028223 is a prime.

It is a super-2 number, since 2×830282392 = 13787376942882242, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 83028199 and 83028208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83028299) 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, 144362 + ... + 144935.

It is an arithmetic number, because the mean of its divisors is an integer number (12150516).

Almost surely, 283028239 is an apocalyptic number.

83028239 is a deficient number, since it is larger than the sum of its proper divisors (14175889).

83028239 is a wasteful number, since it uses less digits than its factorization.

83028239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289345.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 83028239 is about 9111.9832638125. The cubic root of 83028239 is about 436.2565316220.

The spelling of 83028239 in words is "eighty-three million, twenty-eight thousand, two hundred thirty-nine".

Divisors: 1 7 41 287 289297 2025079 11861177 83028239