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312023211230 = 25103130264133
BaseRepresentation
bin1001000101001100000…
…10000101110011011110
31002211101102201102220202
410202212002011303132
520103010420224410
6355201432143502
731354140351323
oct4424602056336
91084342642822
10312023211230
11110367a71905
125057bb37b92
1323567a2c393
141115dc82b4a
1581b2eb6ca5
hex48a6085cde

312023211230 has 16 divisors (see below), whose sum is σ = 562186553184. Its totient is φ = 124688223840.

The previous prime is 312023211223. The next prime is 312023211239. The reversal of 312023211230 is 32112320213.

It is a super-2 number, since 2×3120232112302 (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312023211239) 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 7 ways as a sum of consecutive naturals, for example, 15121757 + ... + 15142376.

It is an arithmetic number, because the mean of its divisors is an integer number (35136659574).

Almost surely, 2312023211230 is an apocalyptic number.

312023211230 is a deficient number, since it is larger than the sum of its proper divisors (250163341954).

312023211230 is a wasteful number, since it uses less digits than its factorization.

312023211230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30265171.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 312023211230 its reverse (32112320213), we get a palindrome (344135531443).

The spelling of 312023211230 in words is "three hundred twelve billion, twenty-three million, two hundred eleven thousand, two hundred thirty".

Divisors: 1 2 5 10 1031 2062 5155 10310 30264133 60528266 151320665 302641330 31202321123 62404642246 156011605615 312023211230