Base | Representation |
---|---|
bin | 101000100101110100… |
… | …0100100100000101110 |
3 | 22022222220111001011110 |
4 | 1101023220210200232 |
5 | 2412010034204210 |
6 | 104013342332450 |
7 | 6204053043021 |
oct | 1211350444056 |
9 | 268886431143 |
10 | 87168272430 |
11 | 33a71243278 |
12 | 14a8858a126 |
13 | 82b2266935 |
14 | 430cbb91b8 |
15 | 2402976420 |
hex | 144ba2482e |
87168272430 has 16 divisors (see below), whose sum is σ = 209203853904. Its totient is φ = 23244872640.
The previous prime is 87168272423. The next prime is 87168272449. The reversal of 87168272430 is 3427286178.
It is a self number, because there is not a number n which added to its sum of digits gives 87168272430.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1452804511 + ... + 1452804570.
It is an arithmetic number, because the mean of its divisors is an integer number (13075240869).
Almost surely, 287168272430 is an apocalyptic number.
87168272430 is an abundant number, since it is smaller than the sum of its proper divisors (122035581474).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
87168272430 is a wasteful number, since it uses less digits than its factorization.
87168272430 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2905609091.
The product of its (nonzero) digits is 903168, while the sum is 48.
The spelling of 87168272430 in words is "eighty-seven billion, one hundred sixty-eight million, two hundred seventy-two thousand, four hundred thirty".
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