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230212015 = 5114185673
BaseRepresentation
bin11011011100011…
…00000110101111
3121001011222111221
431232030012233
5432413241030
634502124211
75463525025
oct1556140657
9531158457
10230212015
11108a48770
1265120667
1338904937
1422808715
1515325e7a
hexdb8c1af

230212015 has 8 divisors (see below), whose sum is σ = 301368528. Its totient is φ = 167426880.

The previous prime is 230212013. The next prime is 230212049. The reversal of 230212015 is 510212032.

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

It is not a de Polignac number, because 230212015 - 21 = 230212013 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 230212015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230212013) 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, 2092782 + ... + 2092891.

It is an arithmetic number, because the mean of its divisors is an integer number (37671066).

Almost surely, 2230212015 is an apocalyptic number.

230212015 is a deficient number, since it is larger than the sum of its proper divisors (71156513).

230212015 is a wasteful number, since it uses less digits than its factorization.

230212015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4185689.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 230212015 is about 15172.7392055621. The cubic root of 230212015 is about 612.8807705968.

Adding to 230212015 its reverse (510212032), we get a palindrome (740424047).

The spelling of 230212015 in words is "two hundred thirty million, two hundred twelve thousand, fifteen".

Divisors: 1 5 11 55 4185673 20928365 46042403 230212015