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230005213 = 3153139991
BaseRepresentation
bin11011011010110…
…01100111011101
3121000210110211121
431231121213131
5432340131323
634453450541
75462004064
oct1555314735
9530713747
10230005213
11108917359
1265040a51
1338861779
14227931db
15152d4a5d
hexdb599dd

230005213 has 8 divisors (see below), whose sum is σ = 241906176. Its totient is φ = 218384400.

The previous prime is 230005211. The next prime is 230005219. The reversal of 230005213 is 312500032.

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 230005213 - 21 = 230005211 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 (230005211) 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, 68353 + ... + 71638.

It is an arithmetic number, because the mean of its divisors is an integer number (30238272).

Almost surely, 2230005213 is an apocalyptic number.

It is an amenable number.

230005213 is a deficient number, since it is larger than the sum of its proper divisors (11900963).

230005213 is a wasteful number, since it uses less digits than its factorization.

230005213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140075.

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 230005213 is about 15165.9227546496. The cubic root of 230005213 is about 612.6971964246.

Adding to 230005213 its reverse (312500032), we get a palindrome (542505245).

The spelling of 230005213 in words is "two hundred thirty million, five thousand, two hundred thirteen".

Divisors: 1 31 53 1643 139991 4339721 7419523 230005213