Base | Representation |
---|---|
bin | 10011110101101010110000… |
… | …101001000100110110010101 |
3 | 102102221002220021101112212110 |
4 | 103311222300221010312111 |
5 | 42414004400334134400 |
6 | 505322305025541233 |
7 | 24243446235350622 |
oct | 2365526051046625 |
9 | 372832807345773 |
10 | 87250929208725 |
11 | 25889a02a02a27 |
12 | 99519937a4819 |
13 | 398b95bbcbb79 |
14 | 1778d78b9d349 |
15 | a148e47ece50 |
hex | 4f5ab0a44d95 |
87250929208725 has 48 divisors (see below), whose sum is σ = 145833802646400. Its totient is φ = 46025448672000.
The previous prime is 87250929208697. The next prime is 87250929208733. The reversal of 87250929208725 is 52780292905278.
It is not a de Polignac number, because 87250929208725 - 212 = 87250929204629 is a prime.
It is a super-2 number, since 2×872509292087252 (a number of 29 digits) contains 22 as substring.
It is a Smith number, since the sum of its digits (66) coincides with the sum of the digits of its prime factors.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1369351 + ... + 13280699.
It is an arithmetic number, because the mean of its divisors is an integer number (3038204221800).
Almost surely, 287250929208725 is an apocalyptic number.
It is an amenable number.
87250929208725 is a deficient number, since it is larger than the sum of its proper divisors (58582873437675).
87250929208725 is a wasteful number, since it uses less digits than its factorization.
87250929208725 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 11912430 (or 11912425 counting only the distinct ones).
The product of its (nonzero) digits is 101606400, while the sum is 66.
The spelling of 87250929208725 in words is "eighty-seven trillion, two hundred fifty billion, nine hundred twenty-nine million, two hundred eight thousand, seven hundred twenty-five".
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