Base | Representation |
---|---|
bin | 101000111101010001… |
… | …1110010111100101011 |
3 | 22102000202212212221210 |
4 | 1101322203302330223 |
5 | 2420113110044440 |
6 | 104223424404203 |
7 | 6232422560625 |
oct | 1217243627453 |
9 | 272022785853 |
10 | 87955549995 |
11 | 34335684595 |
12 | 15068176663 |
13 | 83a93b3a51 |
14 | 4385591c15 |
15 | 244bb38a80 |
hex | 147a8f2f2b |
87955549995 has 16 divisors (see below), whose sum is σ = 140733829152. Its totient is φ = 46907976960.
The previous prime is 87955549993. The next prime is 87955550021. The reversal of 87955549995 is 59994555978.
It is not a de Polignac number, because 87955549995 - 21 = 87955549993 is a prime.
It is not an unprimeable number, because it can be changed into a prime (87955549993) 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, 424839 + ... + 596991.
It is an arithmetic number, because the mean of its divisors is an integer number (8795864322).
Almost surely, 287955549995 is an apocalyptic number.
87955549995 is a deficient number, since it is larger than the sum of its proper divisors (52778279157).
87955549995 is a wasteful number, since it uses less digits than its factorization.
87955549995 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 206222.
The product of its digits is 918540000, while the sum is 75.
The spelling of 87955549995 in words is "eighty-seven billion, nine hundred fifty-five million, five hundred forty-nine thousand, nine hundred ninety-five".
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