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1213222323230 = 25593285171761
BaseRepresentation
bin10001101001111001101…
…011111000010000011110
311021222112112211201120122
4101221321223320100132
5124334134403320410
62325202512514542
7153436531411241
oct21517153702036
94258475751518
101213222323230
11428585411255
1217716984ba52
138a538a5b6c8
1442a12607258
152185a905e55
hex11a79af841e

1213222323230 has 32 divisors (see below), whose sum is σ = 2188280575008. Its totient is φ = 484293888000.

The previous prime is 1213222323191. The next prime is 1213222323251. The reversal of 1213222323230 is 323232223121.

It is a self number, because there is not a number n which added to its sum of digits gives 1213222323230.

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, 16870550 + ... + 16942310.

It is an arithmetic number, because the mean of its divisors is an integer number (68383767969).

Almost surely, 21213222323230 is an apocalyptic number.

1213222323230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1213222323230 is a deficient number, since it is larger than the sum of its proper divisors (975058251778).

1213222323230 is a wasteful number, since it uses less digits than its factorization.

1213222323230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75212.

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 1213222323230 its reverse (323232223121), we get a palindrome (1536454546351).

The spelling of 1213222323230 in words is "one trillion, two hundred thirteen billion, two hundred twenty-two million, three hundred twenty-three thousand, two hundred thirty".

Divisors: 1 2 5 10 593 1186 2851 2965 5702 5930 14255 28510 71761 143522 358805 717610 1690643 3381286 8453215 16906430 42554273 85108546 204590611 212771365 409181222 425542730 1022953055 2045906110 121322232323 242644464646 606611161615 1213222323230