Base | Representation |
---|---|
bin | 10111100000101100110… |
… | …11000111001101100111 |
3 | 2212020011001202220001112 |
4 | 23300112123013031213 |
5 | 101213413443322311 |
6 | 1415040105415235 |
7 | 112235532123656 |
oct | 13602633071547 |
9 | 2766131686045 |
10 | 807830057831 |
11 | 29166500a075 |
12 | 11069079a51b |
13 | 5b24122a8a4 |
14 | 2b15623319d |
15 | 1603091e28b |
hex | bc166c7367 |
807830057831 has 4 divisors (see below), whose sum is σ = 808122012192. Its totient is φ = 807538103472.
The previous prime is 807830057807. The next prime is 807830057849. The reversal of 807830057831 is 138750038708.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 807830057831 - 218 = 807829795687 is a prime.
It is a super-2 number, since 2×8078300578312 (a number of 25 digits) contains 22 as substring.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 807830057831.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (807830017831) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145973030 + ... + 145978563.
It is an arithmetic number, because the mean of its divisors is an integer number (202030503048).
Almost surely, 2807830057831 is an apocalyptic number.
807830057831 is a deficient number, since it is larger than the sum of its proper divisors (291954361).
807830057831 is a wasteful number, since it uses less digits than its factorization.
807830057831 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 291954360.
The product of its (nonzero) digits is 1128960, while the sum is 50.
The spelling of 807830057831 in words is "eight hundred seven billion, eight hundred thirty million, fifty-seven thousand, eight hundred thirty-one".
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