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20112311112310 = 2529499863161047
BaseRepresentation
bin1001001001010110000110…
…01010001101001001110110
32122012201101112122011010001
410210223003022031021312
510114010003121043220
6110435245043021514
74144031550515044
oct444530312151166
978181345564101
1020112311112310
11645464632901a
122309a9836a89a
13b2b776546a01
144d7626363394
1524d279ce780a
hex124ac328d276

20112311112310 has 64 divisors (see below), whose sum is σ = 37569277440000. Its totient is φ = 7742916461952.

The previous prime is 20112311112277. The next prime is 20112311112379. The reversal of 20112311112310 is 1321111321102.

It is a super-2 number, since 2×201123111123102 (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 124804207 + ... + 124965253.

It is an arithmetic number, because the mean of its divisors is an integer number (587019960000).

Almost surely, 220112311112310 is an apocalyptic number.

20112311112310 is a deficient number, since it is larger than the sum of its proper divisors (17456966327690).

20112311112310 is a wasteful number, since it uses less digits than its factorization.

20112311112310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162445.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 20112311112310 its reverse (1321111321102), we get a palindrome (21433422433412).

The spelling of 20112311112310 in words is "twenty trillion, one hundred twelve billion, three hundred eleven million, one hundred twelve thousand, three hundred ten".

Divisors: 1 2 5 10 29 58 145 290 499 863 998 1726 2495 4315 4990 8630 14471 25027 28942 50054 72355 125135 144710 161047 250270 322094 430637 805235 861274 1610470 2153185 4306370 4670363 9340726 12488473 23351815 24976946 46703630 62442365 80362453 124884730 138983561 160724906 277967122 401812265 694917805 803624530 1389835610 2330511137 4030523269 4661022274 8061046538 11652555685 20152616345 23305111370 40305232690 69352796939 138705593878 346763984695 693527969390 2011231111231 4022462222462 10056155556155 20112311112310