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12412220004 = 223438309321
BaseRepresentation
bin10111000111101001…
…10111001001100100
31012001000210002220000
423203310313021210
5200410012020004
65411352541300
7616405062222
oct134364671144
935030702800
1012412220004
11529a413668
1224a49b1830
13122a6942a2
1485a683b12
154c9a49c39
hex2e3d37264

12412220004 has 30 divisors (see below), whose sum is σ = 32447995734. Its totient is φ = 4137406560.

The previous prime is 12412219999. The next prime is 12412220017. The reversal of 12412220004 is 40002221421.

It can be written as a sum of positive squares in only one way, i.e., 11069144100 + 1343075904 = 105210^2 + 36648^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 19154337 + ... + 19154984.

Almost surely, 212412220004 is an apocalyptic number.

It is an amenable number.

12412220004 is an abundant number, since it is smaller than the sum of its proper divisors (20035775730).

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

12412220004 is a wasteful number, since it uses less digits than its factorization.

12412220004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38309337 (or 38309326 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 12412220004 its reverse (40002221421), we get a palindrome (52414441425).

The spelling of 12412220004 in words is "twelve billion, four hundred twelve million, two hundred twenty thousand, four".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 81 108 162 324 38309321 76618642 114927963 153237284 229855926 344783889 459711852 689567778 1034351667 1379135556 2068703334 3103055001 4137406668 6206110002 12412220004