Base | Representation |
---|---|
bin | 101000101000000110… |
… | …1011011010100111111 |
3 | 22100012020221101121011 |
4 | 1101100031123110333 |
5 | 2412134212334012 |
6 | 104025124020051 |
7 | 6206004425653 |
oct | 1212015332477 |
9 | 270166841534 |
10 | 87245043007 |
11 | 34000609131 |
12 | 14aaa231627 |
13 | 82c5136105 |
14 | 4319080a63 |
15 | 240958d1a7 |
hex | 145035b53f |
87245043007 has 16 divisors (see below), whose sum is σ = 90556416000. Its totient is φ = 84014330400.
The previous prime is 87245042981. The next prime is 87245043031. The reversal of 87245043007 is 70034054278.
It is a cyclic number.
It is not a de Polignac number, because 87245043007 - 27 = 87245042879 is a prime.
It is a super-2 number, since 2×872450430072 (a number of 23 digits) contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (87245043077) by changing a digit.
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, 452994 + ... + 616192.
It is an arithmetic number, because the mean of its divisors is an integer number (5659776000).
Almost surely, 287245043007 is an apocalyptic number.
87245043007 is a deficient number, since it is larger than the sum of its proper divisors (3311372993).
87245043007 is a wasteful number, since it uses less digits than its factorization.
87245043007 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 163446.
The product of its (nonzero) digits is 188160, while the sum is 40.
The spelling of 87245043007 in words is "eighty-seven billion, two hundred forty-five million, forty-three thousand, seven".
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