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103112122320 = 24325178424193
BaseRepresentation
bin110000000000111110…
…1100001111111010000
3100212011001122112111100
41200001331201333100
53142133200403240
6115211414344400
710310133402264
oct1400175417720
9325131575440
10103112122320
113a803117719
1217b9805b100
1399534c033c
144dc24d20a4
152a37579e30
hex1801f61fd0

103112122320 has 120 divisors (see below), whose sum is σ = 366654619656. Its totient is φ = 25879117824.

The previous prime is 103112122301. The next prime is 103112122327. The reversal of 103112122320 is 23221211301.

103112122320 is a `hidden beast` number, since 10 + 311 + 2 + 1 + 22 + 320 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 31006983744 + 72105138576 = 176088^2 + 268524^2 .

It is a tau number, because it is divible by the number of its divisors (120).

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

It is a junction number, because it is equal to n+sod(n) for n = 103112122293 and 103112122302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103112122327) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 4199857 + ... + 4224336.

Almost surely, 2103112122320 is an apocalyptic number.

103112122320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

103112122320 is an abundant number, since it is smaller than the sum of its proper divisors (263542497336).

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

103112122320 is a wasteful number, since it uses less digits than its factorization.

103112122320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8424229 (or 8424220 counting only the distinct ones).

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

Adding to 103112122320 its reverse (23221211301), we get a palindrome (126333333621).

The spelling of 103112122320 in words is "one hundred three billion, one hundred twelve million, one hundred twenty-two thousand, three hundred twenty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 17 18 20 24 30 34 36 40 45 48 51 60 68 72 80 85 90 102 120 136 144 153 170 180 204 240 255 272 306 340 360 408 510 612 680 720 765 816 1020 1224 1360 1530 2040 2448 3060 4080 6120 12240 8424193 16848386 25272579 33696772 42120965 50545158 67393544 75817737 84241930 101090316 126362895 134787088 143211281 151635474 168483860 202180632 252725790 286422562 303270948 336967720 379088685 404361264 429633843 505451580 572845124 606541896 673935440 716056405 758177370 859267686 1010903160 1145690248 1213083792 1288901529 1432112810 1516354740 1718535372 2021806320 2148169215 2291380496 2577803058 2864225620 3032709480 3437070744 4296338430 5155606116 5728451240 6065418960 6444507645 6874141488 8592676860 10311212232 11456902480 12889015290 17185353720 20622424464 25778030580 34370707440 51556061160 103112122320