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310012042212 = 2232233547105557
BaseRepresentation
bin1001000001011100010…
…10000101101111100100
31002122012021100110200100
410200232022011233210
520034401040322322
6354230105544100
731253246610645
oct4405612055744
91078167313610
10310012042212
1110a525796854
12500ba4a5030
1323307174342
141100cb1b6cc
1580e6649dac
hex482e285be4

310012042212 has 72 divisors (see below), whose sum is σ = 817951208256. Its totient is φ = 98815616064.

The previous prime is 310012042201. The next prime is 310012042231. The reversal of 310012042212 is 212240210013.

It is a happy number.

It is a super-2 number, since 2×3100120422122 (a number of 24 digits) contains 22 as substring.

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 23 ways as a sum of consecutive naturals, for example, 2884138 + ... + 2989694.

It is an arithmetic number, because the mean of its divisors is an integer number (11360433448).

Almost surely, 2310012042212 is an apocalyptic number.

It is an amenable number.

310012042212 is an abundant number, since it is smaller than the sum of its proper divisors (507939166044).

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

310012042212 is a wasteful number, since it uses less digits than its factorization.

310012042212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109137 (or 109132 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 310012042212 its reverse (212240210013), we get a palindrome (522252252225).

The spelling of 310012042212 in words is "three hundred ten billion, twelve million, forty-two thousand, two hundred twelve".

Divisors: 1 2 3 4 6 9 12 18 23 36 46 69 92 138 207 276 414 828 3547 7094 10641 14188 21282 31923 42564 63846 81581 105557 127692 163162 211114 244743 316671 326324 422228 489486 633342 734229 950013 978972 1266684 1468458 1900026 2427811 2936916 3800052 4855622 7283433 9711244 14566866 21850299 29133732 43700598 87401196 374410679 748821358 1123232037 1497642716 2246464074 3369696111 4492928148 6739392222 8611445617 13478784444 17222891234 25834336851 34445782468 51668673702 77503010553 103337347404 155006021106 310012042212