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12412223550 = 2325271388489
BaseRepresentation
bin10111000111101001…
…11000000000111110
31012001000210021202100
423203310320000332
5200410012123200
65411353005530
7616405105446
oct134364700076
935030707670
1012412223550
11529a4162a1
1224a49b38a6
13122a695a9c
1485a685126
154c9a4ad00
hex2e3d3803e

12412223550 has 72 divisors (see below), whose sum is σ = 33817277520. Its totient is φ = 3263299200.

The previous prime is 12412223533. The next prime is 12412223557. The reversal of 12412223550 is 5532221421.

12412223550 is a `hidden beast` number, since 12 + 412 + 2 + 235 + 5 + 0 = 666.

12412223550 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12412223557) 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 35 ways as a sum of consecutive naturals, for example, 162295 + ... + 226194.

It is an arithmetic number, because the mean of its divisors is an integer number (469684410).

Almost surely, 212412223550 is an apocalyptic number.

12412223550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12412223550 is an abundant number, since it is smaller than the sum of its proper divisors (21405053970).

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

12412223550 is a wasteful number, since it uses less digits than its factorization.

12412223550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388578 (or 388570 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

Adding to 12412223550 its reverse (5532221421), we get a palindrome (17944444971).

The spelling of 12412223550 in words is "twelve billion, four hundred twelve million, two hundred twenty-three thousand, five hundred fifty".

Divisors: 1 2 3 5 6 9 10 15 18 25 30 45 50 71 75 90 142 150 213 225 355 426 450 639 710 1065 1278 1775 2130 3195 3550 5325 6390 10650 15975 31950 388489 776978 1165467 1942445 2330934 3496401 3884890 5827335 6992802 9712225 11654670 17482005 19424450 27582719 29136675 34964010 55165438 58273350 82748157 87410025 137913595 165496314 174820050 248244471 275827190 413740785 496488942 689567975 827481570 1241222355 1379135950 2068703925 2482444710 4137407850 6206111775 12412223550