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230131020330 = 23252557011337
BaseRepresentation
bin1101011001010011100…
…0001011001000101010
3211000000020010002222100
43112110320023020222
512232302020122310
6253415402234230
722424601253221
oct3262470131052
9730006102870
10230131020330
1189663a637a2
12387264b5976
13189168992a3
14b1d1ab3cb8
155ebd82dec0
hex3594e0b22a

230131020330 has 24 divisors (see below), whose sum is σ = 598340653092. Its totient is φ = 61368272064.

The previous prime is 230131020323. The next prime is 230131020391. The reversal of 230131020330 is 33020131032.

230131020330 is a `hidden beast` number, since 2 + 3 + 0 + 1 + 310 + 20 + 330 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 220495045761 + 9635974569 = 469569^2 + 98163^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 1278505579 + ... + 1278505758.

Almost surely, 2230131020330 is an apocalyptic number.

230131020330 is an abundant number, since it is smaller than the sum of its proper divisors (368209632762).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

230131020330 is a wasteful number, since it uses less digits than its factorization.

230131020330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2557011350 (or 2557011347 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 230131020330 its reverse (33020131032), we get a palindrome (263151151362).

The spelling of 230131020330 in words is "two hundred thirty billion, one hundred thirty-one million, twenty thousand, three hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 2557011337 5114022674 7671034011 12785056685 15342068022 23013102033 25570113370 38355170055 46026204066 76710340110 115065510165 230131020330