Base | Representation |
---|---|
bin | 101000110001101101… |
… | …1000000110001110100 |
3 | 22101000201110101000001 |
4 | 1101203123000301310 |
5 | 2413314221341010 |
6 | 104121120401044 |
7 | 6220000242556 |
oct | 1214333006164 |
9 | 271021411001 |
10 | 87567371380 |
11 | 34156553215 |
12 | 14b7a176184 |
13 | 8346b51068 |
14 | 4349bc74d6 |
15 | 2427a0cc3a |
hex | 14636c0c74 |
87567371380 has 48 divisors (see below), whose sum is σ = 193744212480. Its totient is φ = 33153556608.
The previous prime is 87567371369. The next prime is 87567371387. The reversal of 87567371380 is 8317376578.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (87567371387) 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, 321309 + ... + 527611.
It is an arithmetic number, because the mean of its divisors is an integer number (4036337760).
Almost surely, 287567371380 is an apocalyptic number.
It is an amenable number.
87567371380 is an abundant number, since it is smaller than the sum of its proper divisors (106176841100).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
87567371380 is a wasteful number, since it uses less digits than its factorization.
87567371380 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 207448 (or 207446 counting only the distinct ones).
The product of its (nonzero) digits is 5927040, while the sum is 55.
The spelling of 87567371380 in words is "eighty-seven billion, five hundred sixty-seven million, three hundred seventy-one thousand, three hundred eighty".
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