Base | Representation |
---|---|
bin | 1010100010001011001… |
… | …1111001011000010100 |
3 | 122022010021222110122110 |
4 | 2220202303321120110 |
5 | 10431112444444043 |
6 | 215045424031020 |
7 | 16034446124214 |
oct | 2504263713024 |
9 | 568107873573 |
10 | 180972656148 |
11 | 6a82838a139 |
12 | 2b0a7462470 |
13 | 140b12c972b |
14 | 8a8b06a244 |
15 | 4a92cd7b33 |
hex | 2a22cf9614 |
180972656148 has 24 divisors (see below), whose sum is σ = 423383709280. Its totient is φ = 60165050400.
The previous prime is 180972656147. The next prime is 180972656167. The reversal of 180972656148 is 841656279081.
It is a super-2 number, since 2×1809726561482 (a number of 23 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (180972656147) 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 7 ways as a sum of consecutive naturals, for example, 19891303 + ... + 19900398.
Almost surely, 2180972656148 is an apocalyptic number.
It is an amenable number.
180972656148 is an abundant number, since it is smaller than the sum of its proper divisors (242411053132).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
180972656148 is a wasteful number, since it uses less digits than its factorization.
180972656148 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 39792087 (or 39792085 counting only the distinct ones).
The product of its (nonzero) digits is 5806080, while the sum is 57.
The spelling of 180972656148 in words is "one hundred eighty billion, nine hundred seventy-two million, six hundred fifty-six thousand, one hundred forty-eight".
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