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312213100210002 = 23455011312126701
BaseRepresentation
bin100011011111101001100011…
…0111011101010011101010010
31111221110021120202122222220000
41012333103012323222131102
5311410244412123210002
63024004415043230430
7122522436450422505
oct10677230673523522
91457407522588800
10312213100210002
1190531917765162
122b024ba7678416
13105297521a0804
1457152a22a913c
1526165a4d4c61c
hex11bf4c6eea752

312213100210002 has 80 divisors (see below), whose sum is σ = 699795323771544. Its totient is φ = 104040288000000.

The previous prime is 312213100209971. The next prime is 312213100210009. The reversal of 312213100210002 is 200012001312213.

312213100210002 is a `hidden beast` number, since 31 + 221 + 310 + 0 + 2 + 100 + 0 + 2 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 233575560346041 + 78637539863961 = 15283179^2 + 8867781^2 .

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

It is not an unprimeable number, because it can be changed into a prime (312213100210009) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 11692923252 + ... + 11692949952.

Almost surely, 2312213100210002 is an apocalyptic number.

312213100210002 is an abundant number, since it is smaller than the sum of its proper divisors (387582223561542).

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

312213100210002 is a wasteful number, since it uses less digits than its factorization.

312213100210002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45337 (or 45328 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 312213100210002 its reverse (200012001312213), we get a palindrome (512225101522215).

The spelling of 312213100210002 in words is "three hundred twelve trillion, two hundred thirteen billion, one hundred million, two hundred ten thousand, two".

Divisors: 1 2 3 6 9 18 27 54 81 162 5501 11002 13121 16503 26242 26701 33006 39363 49509 53402 78726 80103 99018 118089 148527 160206 236178 240309 297054 354267 445581 480618 708534 720927 891162 1062801 1441854 2125602 2162781 4325562 72178621 144357242 146882201 216535863 293764402 350343821 433071726 440646603 649607589 700687642 881293206 1051031463 1299215178 1321939809 1948822767 2102062926 2643879618 3153094389 3897645534 3965819427 5846468301 6306188778 7931638854 9459283167 11692936602 11897458281 18918566334 23794916562 28377849501 56755699002 1927241359321 3854482718642 5781724077963 11563448155926 17345172233889 34690344467778 52035516701667 104071033403334 156106550105001 312213100210002