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320230135 = 51071135297
BaseRepresentation
bin10011000101100…
…101001011110111
3211022120101011101
4103011211023313
51123434331020
651435350531
710635624361
oct2305451367
9738511141
10320230135
11154841705
128b2b2447
1351461bb4
143075bd31
151d1a800a
hex131652f7

320230135 has 16 divisors (see below), whose sum is σ = 391373856. Its totient is φ = 251496448.

The previous prime is 320230133. The next prime is 320230147. The reversal of 320230135 is 531032023.

It is a cyclic number.

It is not a de Polignac number, because 320230135 - 21 = 320230133 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 (320230133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57807 + ... + 63103.

It is an arithmetic number, because the mean of its divisors is an integer number (24460866).

Almost surely, 2320230135 is an apocalyptic number.

320230135 is a deficient number, since it is larger than the sum of its proper divisors (71143721).

320230135 is a wasteful number, since it uses less digits than its factorization.

320230135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5522.

The product of its (nonzero) digits is 540, while the sum is 19.

The square root of 320230135 is about 17894.9751327014. The cubic root of 320230135 is about 684.1543082601.

Adding to 320230135 its reverse (531032023), we get a palindrome (851262158).

The spelling of 320230135 in words is "three hundred twenty million, two hundred thirty thousand, one hundred thirty-five".

Divisors: 1 5 107 113 535 565 5297 12091 26485 60455 566779 598561 2833895 2992805 64046027 320230135