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312031300022 = 21397587210773
BaseRepresentation
bin1001000101001101000…
…00111100100110110110
31002211101222221101122122
410202212200330212312
520103020003100042
6355202321355542
731354266200651
oct4424640744666
91084358841578
10312031300022
11110371597062
1250582798bb2
1323569602050
1411160d8a898
1581b3a637d2
hex48a683c9b6

312031300022 has 32 divisors (see below), whose sum is σ = 510116920992. Its totient is φ = 142286275584.

The previous prime is 312031300013. The next prime is 312031300067. The reversal of 312031300022 is 220003130213.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1375028 + ... + 1585800.

It is an arithmetic number, because the mean of its divisors is an integer number (15941153781).

Almost surely, 2312031300022 is an apocalyptic number.

312031300022 is a deficient number, since it is larger than the sum of its proper divisors (198085620970).

312031300022 is a wasteful number, since it uses less digits than its factorization.

312031300022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211472.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 312031300022 its reverse (220003130213), we get a palindrome (532034430235).

The spelling of 312031300022 in words is "three hundred twelve billion, thirty-one million, three hundred thousand, twenty-two".

Divisors: 1 2 13 26 97 194 587 1174 1261 2522 7631 15262 56939 113878 210773 421546 740207 1480414 2740049 5480098 20444981 40889962 123723751 247447502 265784753 531569506 1608408763 3216817526 12001203847 24002407694 156015650011 312031300022