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123422612612 = 221321172715473
BaseRepresentation
bin111001011110010001…
…1111001110010000100
3102210120112102100100112
41302330203321302010
54010232142100422
6132411034532152
711626345616555
oct1627443716204
9383515370315
10123422612612
1148385935692
121bb05b97058
13b83c2c9830
145d8bb1c32c
1533256c7ee2
hex1cbc8f9c84

123422612612 has 48 divisors (see below), whose sum is σ = 234043135872. Its totient is φ = 56612666880.

The previous prime is 123422612609. The next prime is 123422612641. The reversal of 123422612612 is 216216224321.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7968908 + ... + 7984380.

It is an arithmetic number, because the mean of its divisors is an integer number (4875898664).

Almost surely, 2123422612612 is an apocalyptic number.

It is an amenable number.

123422612612 is a deficient number, since it is larger than the sum of its proper divisors (110620523260).

123422612612 is a wasteful number, since it uses less digits than its factorization.

123422612612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16428 (or 16426 counting only the distinct ones).

The product of its digits is 13824, while the sum is 32.

Adding to 123422612612 its reverse (216216224321), we get a palindrome (339638836933).

The spelling of 123422612612 in words is "one hundred twenty-three billion, four hundred twenty-two million, six hundred twelve thousand, six hundred twelve".

Divisors: 1 2 4 13 26 52 211 422 727 844 1454 2743 2908 5486 9451 10972 15473 18902 30946 37804 61892 153397 201149 306794 402298 613588 804596 1994161 3264803 3988322 6529606 7976644 11248871 13059212 22497742 42442439 44995484 84884878 146235323 169769756 292470646 584941292 2373511781 4747023562 9494047124 30855653153 61711306306 123422612612