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230215401 = 32137924907
BaseRepresentation
bin11011011100011…
…00111011101001
3121001012011011100
431232030323221
5432413343101
634502152013
75463540633
oct1556147351
9531164140
10230215401
11108a50269
1265122609
1338906340
1422809a53
1515326e86
hexdb8cee9

230215401 has 24 divisors (see below), whose sum is σ = 362660480. Its totient is φ = 139872096.

The previous prime is 230215387. The next prime is 230215423. The reversal of 230215401 is 104512032.

It is not a de Polignac number, because 230215401 - 27 = 230215273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (230215471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3211 + ... + 21696.

Almost surely, 2230215401 is an apocalyptic number.

It is an amenable number.

230215401 is a deficient number, since it is larger than the sum of its proper divisors (132445079).

230215401 is a wasteful number, since it uses less digits than its factorization.

230215401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25005 (or 25002 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 230215401 is about 15172.8507868495. The cubic root of 230215401 is about 612.8837753691.

Adding to 230215401 its reverse (104512032), we get a palindrome (334727433).

The spelling of 230215401 in words is "two hundred thirty million, two hundred fifteen thousand, four hundred one".

Divisors: 1 3 9 13 39 79 117 237 711 1027 3081 9243 24907 74721 224163 323791 971373 1967653 2914119 5902959 17708877 25579489 76738467 230215401