Base | Representation |
---|---|
bin | 101000100011110100… |
… | …1101010111010100110 |
3 | 22022211020202012200120 |
4 | 1101013221222322212 |
5 | 2411340432430232 |
6 | 104002554222410 |
7 | 6202312061061 |
oct | 1210751527246 |
9 | 268736665616 |
10 | 87101451942 |
11 | 33a3755402a |
12 | 14a6a124a06 |
13 | 82a146c39b |
14 | 4303d838d8 |
15 | 23ebb7792c |
hex | 1447a6aea6 |
87101451942 has 32 divisors (see below), whose sum is σ = 175008936960. Its totient is φ = 28899562560.
The previous prime is 87101451929. The next prime is 87101451959. The reversal of 87101451942 is 24915410178.
It is a junction number, because it is equal to n+sod(n) for n = 87101451894 and 87101451903.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5067559 + ... + 5084717.
It is an arithmetic number, because the mean of its divisors is an integer number (5469029280).
Almost surely, 287101451942 is an apocalyptic number.
87101451942 is an abundant number, since it is smaller than the sum of its proper divisors (87907485018).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
87101451942 is a wasteful number, since it uses less digits than its factorization.
87101451942 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 21028.
The product of its (nonzero) digits is 80640, while the sum is 42.
The spelling of 87101451942 in words is "eighty-seven billion, one hundred one million, four hundred fifty-one thousand, nine hundred forty-two".
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