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230148148 = 22415713841
BaseRepresentation
bin11011011011111…
…00100000110100
3121001001201220111
431231330200310
5432404220043
634500512404
75463140566
oct1555744064
9531051814
10230148148
11108a0478a
12650ab704
13388b1849
14227cd336
151531209d
hexdb7c834

230148148 has 12 divisors (see below), whose sum is σ = 402885252. Its totient is φ = 115038080.

The previous prime is 230148131. The next prime is 230148161. The reversal of 230148148 is 841841032.

It can be written as a sum of positive squares in 2 ways, for example, as 88585744 + 141562404 = 9412^2 + 11898^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9708 + ... + 23548.

It is an arithmetic number, because the mean of its divisors is an integer number (33573771).

Almost surely, 2230148148 is an apocalyptic number.

It is an amenable number.

230148148 is a deficient number, since it is larger than the sum of its proper divisors (172737104).

230148148 is a wasteful number, since it uses less digits than its factorization.

230148148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18002 (or 18000 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 31.

The square root of 230148148 is about 15170.6343967548. The cubic root of 230148148 is about 612.8240888224.

The spelling of 230148148 in words is "two hundred thirty million, one hundred forty-eight thousand, one hundred forty-eight".

Divisors: 1 2 4 4157 8314 13841 16628 27682 55364 57537037 115074074 230148148