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230200381 = 1499911559
BaseRepresentation
bin11011011100010…
…01010000111101
3121001011101120001
431232021100331
5432412403011
634501554301
75463446065
oct1556112075
9531141501
10230200381
11108a3aa54
1265115991
13388cc558
14228043a5
15153227c1
hexdb8943d

230200381 has 8 divisors (see below), whose sum is σ = 232128000. Its totient is φ = 228278160.

The previous prime is 230200379. The next prime is 230200387. The reversal of 230200381 is 183002032.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 230200381 - 21 = 230200379 is a prime.

It is a super-2 number, since 2×2302003812 = 105984430825090322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230200387) 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, 146880 + ... + 148438.

It is an arithmetic number, because the mean of its divisors is an integer number (29016000).

Almost surely, 2230200381 is an apocalyptic number.

It is an amenable number.

230200381 is a deficient number, since it is larger than the sum of its proper divisors (1927619).

230200381 is a wasteful number, since it uses less digits than its factorization.

230200381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2699.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 230200381 is about 15172.3558157591. The cubic root of 230200381 is about 612.8704462370.

The spelling of 230200381 in words is "two hundred thirty million, two hundred thousand, three hundred eighty-one".

Divisors: 1 149 991 1559 147659 232291 1544969 230200381