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12123022996 = 2271648726261
BaseRepresentation
bin10110100101001011…
…01010011010010100
31011021212121101011201
423102211222122110
5144311443213441
65322542242244
7606263665240
oct132245523224
934255541151
1012123022996
115161148677
122423b86384
1311b27a96b6
148300c3420
154ae471c31
hex2d296a694

12123022996 has 24 divisors (see below), whose sum is σ = 24248439936. Its totient is φ = 5195068320.

The previous prime is 12123022993. The next prime is 12123022997. The reversal of 12123022996 is 69922032121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12123022991) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 448506 + ... + 474766.

It is an arithmetic number, because the mean of its divisors is an integer number (1010351664).

Almost surely, 212123022996 is an apocalyptic number.

It is an amenable number.

12123022996 is an abundant number, since it is smaller than the sum of its proper divisors (12125416940).

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

12123022996 is a wasteful number, since it uses less digits than its factorization.

12123022996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42759 (or 42757 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 37.

The spelling of 12123022996 in words is "twelve billion, one hundred twenty-three million, twenty-two thousand, nine hundred ninety-six".

Divisors: 1 2 4 7 14 28 16487 26261 32974 52522 65948 105044 115409 183827 230818 367654 461636 735308 432965107 865930214 1731860428 3030755749 6061511498 12123022996