Base | Representation |
---|---|
bin | 10011111111100010110110… |
… | …010010010101010111101101 |
3 | 102112022222202000022011221221 |
4 | 103333202312102111113231 |
5 | 43011114334424240044 |
6 | 511002151440223341 |
7 | 24343464112250464 |
oct | 2377426622252755 |
9 | 375288660264857 |
10 | 87929628743149 |
11 | 26020823117566 |
12 | 9a4142690ab51 |
13 | 3a0a96142230b |
14 | 179db611b99db |
15 | a273b88a6484 |
hex | 4ff8b64955ed |
87929628743149 has 16 divisors (see below), whose sum is σ = 88093458573120. Its totient is φ = 87765971610240.
The previous prime is 87929628743141. The next prime is 87929628743167. The reversal of 87929628743149 is 94134782692978.
It is a cyclic number.
It is not a de Polignac number, because 87929628743149 - 23 = 87929628743141 is a prime.
It is a super-2 number, since 2×879296287431492 (a number of 29 digits) contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (87929628743141) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11162828199 + ... + 11162836075.
It is an arithmetic number, because the mean of its divisors is an integer number (5505841160820).
Almost surely, 287929628743149 is an apocalyptic number.
It is an amenable number.
87929628743149 is a deficient number, since it is larger than the sum of its proper divisors (163829829971).
87929628743149 is a wasteful number, since it uses less digits than its factorization.
87929628743149 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 16380.
The product of its digits is 2633637888, while the sum is 79.
The spelling of 87929628743149 in words is "eighty-seven trillion, nine hundred twenty-nine billion, six hundred twenty-eight million, seven hundred forty-three thousand, one hundred forty-nine".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.075 sec. • engine limits •