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101023032012 = 22372983499649
BaseRepresentation
bin101111000010101110…
…0010010001011001100
3100122202110122202100020
41132011130102023030
53123343344011022
6114224230102140
710204305414060
oct1360534221314
9318673582306
10101023032012
1139930960201
12176b44aa950
1396ac752126
144c64c85aa0
152963e6a35c
hex17857122cc

101023032012 has 96 divisors (see below), whose sum is σ = 282042432000. Its totient is φ = 27532603392.

The previous prime is 101023031999. The next prime is 101023032037. The reversal of 101023032012 is 210230320101.

It is a junction number, because it is equal to n+sod(n) for n = 101023031982 and 101023032000.

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 31 ways as a sum of consecutive naturals, for example, 47637 + ... + 452012.

It is an arithmetic number, because the mean of its divisors is an integer number (2937942000).

Almost surely, 2101023032012 is an apocalyptic number.

101023032012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 101023032012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (141021216000).

101023032012 is an abundant number, since it is smaller than the sum of its proper divisors (181019399988).

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

101023032012 is a wasteful number, since it uses less digits than its factorization.

101023032012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499775 (or 499773 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 101023032012 its reverse (210230320101), we get a palindrome (311253352113).

The spelling of 101023032012 in words is "one hundred one billion, twenty-three million, thirty-two thousand, twelve".

Divisors: 1 2 3 4 6 7 12 14 21 28 29 42 58 83 84 87 116 166 174 203 249 332 348 406 498 581 609 812 996 1162 1218 1743 2324 2407 2436 3486 4814 6972 7221 9628 14442 16849 28884 33698 50547 67396 101094 202188 499649 999298 1498947 1998596 2997894 3497543 5995788 6995086 10492629 13990172 14489821 20985258 28979642 41470867 41970516 43469463 57959284 82941734 86938926 101428747 124412601 165883468 173877852 202857494 248825202 290296069 304286241 405714988 497650404 580592138 608572482 870888207 1161184276 1202655143 1217144964 1741776414 2405310286 3483552828 3607965429 4810620572 7215930858 8418586001 14431861716 16837172002 25255758003 33674344004 50511516006 101023032012