Base | Representation |
---|---|
bin | 101000101000000101… |
… | …0011011110100000000 |
3 | 22100012012110112112120 |
4 | 1101100022123310000 |
5 | 2412134012233220 |
6 | 104025055124240 |
7 | 6205664650644 |
oct | 1212012336400 |
9 | 270165415476 |
10 | 87244258560 |
11 | 34000122828 |
12 | 14aa9b13680 |
13 | 82c4c20044 |
14 | 4318d18c24 |
15 | 2409485a40 |
hex | 145029bd00 |
87244258560 has 72 divisors (see below), whose sum is σ = 278636363040. Its totient is φ = 23265134592.
The previous prime is 87244258547. The next prime is 87244258579. The reversal of 87244258560 is 6585244278.
It is a super-2 number, since 2×872442585602 (a number of 23 digits) contains 22 as substring.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11356090 + ... + 11363769.
Almost surely, 287244258560 is an apocalyptic number.
87244258560 is a gapful number since it is divisible by the number (80) formed by its first and last digit.
It is an amenable number.
87244258560 is an abundant number, since it is smaller than the sum of its proper divisors (191392104480).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
87244258560 is a wasteful number, since it uses less digits than its factorization.
87244258560 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 22719883 (or 22719869 counting only the distinct ones).
The product of its (nonzero) digits is 4300800, while the sum is 51.
The spelling of 87244258560 in words is "eighty-seven billion, two hundred forty-four million, two hundred fifty-eight thousand, five hundred sixty".
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