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230401149 = 3116981853
BaseRepresentation
bin11011011101110…
…10010001111101
3121001112120221220
431232322101331
5432440314044
634510143553
75465243316
oct1556722175
9531476856
10230401149
11109067880
12651b1bb9
133896ca54
142285760d
1515362019
hexdbba47d

230401149 has 8 divisors (see below), whose sum is σ = 335128992. Its totient is φ = 139637040.

The previous prime is 230401139. The next prime is 230401169. The reversal of 230401149 is 941104032.

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

It is not a de Polignac number, because 230401149 - 24 = 230401133 is a prime.

It is a super-3 number, since 3×2304011493 (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230401139) 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, 3490894 + ... + 3490959.

It is an arithmetic number, because the mean of its divisors is an integer number (41891124).

Almost surely, 2230401149 is an apocalyptic number.

It is an amenable number.

230401149 is a deficient number, since it is larger than the sum of its proper divisors (104727843).

230401149 is a wasteful number, since it uses less digits than its factorization.

230401149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6981867.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 230401149 is about 15178.9706172718. The cubic root of 230401149 is about 613.0485649983.

The spelling of 230401149 in words is "two hundred thirty million, four hundred one thousand, one hundred forty-nine".

Divisors: 1 3 11 33 6981853 20945559 76800383 230401149