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320230100 = 22523202301
BaseRepresentation
bin10011000101100…
…101001011010100
3211022120101010002
4103011211023110
51123434330400
651435350432
710635624311
oct2305451324
9738511102
10320230100
11154841683
128b2b2418
1351461b88
143075bd08
151d1a7ed5
hex131652d4

320230100 has 18 divisors (see below), whose sum is σ = 694899534. Its totient is φ = 128092000.

The previous prime is 320230091. The next prime is 320230103. The reversal of 320230100 is 1032023.

It can be written as a sum of positive squares in 3 ways, for example, as 76807696 + 243422404 = 8764^2 + 15602^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320230103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1601051 + ... + 1601250.

Almost surely, 2320230100 is an apocalyptic number.

It is an amenable number.

320230100 is an abundant number, since it is smaller than the sum of its proper divisors (374669434).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

320230100 is a wasteful number, since it uses less digits than its factorization.

320230100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3202315 (or 3202308 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 11.

The square root of 320230100 is about 17894.9741547732. The cubic root of 320230100 is about 684.1542833349.

Adding to 320230100 its reverse (1032023), we get a palindrome (321262123).

The spelling of 320230100 in words is "three hundred twenty million, two hundred thirty thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 100 3202301 6404602 12809204 16011505 32023010 64046020 80057525 160115050 320230100