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321213141231040 = 2651576393573671
BaseRepresentation
bin100100100001001000100001…
…1001011100010010111000000
31120010022200021002122220112001
41021002101003023202113000
5314100224003123343130
63055055140245113344
7124441612040030662
oct11102210313422700
91503280232586461
10321213141231040
1193391801240a73
12300393130b8854
1310a303666c39b6
145946b285cc532
152720756e2d6ca
hex12424432e25c0

321213141231040 has 56 divisors (see below), whose sum is σ = 769760695814112. Its totient is φ = 127666879042560.

The previous prime is 321213141231007. The next prime is 321213141231077. The reversal of 321213141231040 is 40132141312123.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 3196736596 + ... + 3196837075.

Almost surely, 2321213141231040 is an apocalyptic number.

It is an amenable number.

321213141231040 is an abundant number, since it is smaller than the sum of its proper divisors (448547554583072).

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

321213141231040 is a wasteful number, since it uses less digits than its factorization.

321213141231040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6393573845 (or 6393573835 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

Adding to 321213141231040 its reverse (40132141312123), we get a palindrome (361345282543163).

The spelling of 321213141231040 in words is "three hundred twenty-one trillion, two hundred thirteen billion, one hundred forty-one million, two hundred thirty-one thousand, forty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 157 160 314 320 628 785 1256 1570 2512 3140 5024 6280 10048 12560 25120 50240 6393573671 12787147342 25574294684 31967868355 51148589368 63935736710 102297178736 127871473420 204594357472 255742946840 409188714944 511485893680 1003791066347 1022971787360 2007582132694 2045943574720 4015164265388 5018955331735 8030328530776 10037910663470 16060657061552 20075821326940 32121314123104 40151642653880 64242628246208 80303285307760 160606570615520 321213141231040