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123313112200 = 23521932450819
BaseRepresentation
bin111001011011000001…
…0001100010010001000
3102210021220101011000201
41302312002030102020
54010021124042300
6132352123541544
711623546105435
oct1626602142210
9383256334021
10123313112200
114832a045383
121ba9538a8b4
13b82270a9a5
145d7b376b8c
15331ac9866a
hex1cb608c488

123313112200 has 48 divisors (see below), whose sum is σ = 301792626000. Its totient is φ = 46729177920.

The previous prime is 123313112161. The next prime is 123313112213. The reversal of 123313112200 is 2211313321.

It is a super-2 number, since 2×1233131122002 (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16221610 + ... + 16229209.

It is an arithmetic number, because the mean of its divisors is an integer number (6287346375).

Almost surely, 2123313112200 is an apocalyptic number.

123313112200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123313112200 is an abundant number, since it is smaller than the sum of its proper divisors (178479513800).

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

123313112200 is a wasteful number, since it uses less digits than its factorization.

123313112200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32450854 (or 32450845 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 123313112200 its reverse (2211313321), we get a palindrome (125524425521).

The spelling of 123313112200 in words is "one hundred twenty-three billion, three hundred thirteen million, one hundred twelve thousand, two hundred".

Divisors: 1 2 4 5 8 10 19 20 25 38 40 50 76 95 100 152 190 200 380 475 760 950 1900 3800 32450819 64901638 129803276 162254095 259606552 324508190 616565561 649016380 811270475 1233131122 1298032760 1622540950 2466262244 3082827805 3245081900 4932524488 6165655610 6490163800 12331311220 15414139025 24662622440 30828278050 61656556100 123313112200