Base | Representation |
---|---|
bin | 100110001110010… |
… | …100111101000110 |
3 | 1122200200220120111 |
4 | 212032110331012 |
5 | 2303132240204 |
6 | 143345023234 |
7 | 21614606206 |
oct | 4616247506 |
9 | 1580626514 |
10 | 641290054 |
11 | 2a9a9a789 |
12 | 15a924b1a |
13 | a2b24692 |
14 | 61254406 |
15 | 3b476d04 |
hex | 26394f46 |
641290054 has 16 divisors (see below), whose sum is σ = 973797120. Its totient is φ = 316715400.
The previous prime is 641290019. The next prime is 641290063. The reversal of 641290054 is 450092146.
641290054 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a super-2 number, since 2×6412900542 = 822505866718645832, which contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 641289998 and 641290025.
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, 48127 + ... + 59989.
It is an arithmetic number, because the mean of its divisors is an integer number (60862320).
Almost surely, 2641290054 is an apocalyptic number.
641290054 is a deficient number, since it is larger than the sum of its proper divisors (332507066).
641290054 is a wasteful number, since it uses less digits than its factorization.
641290054 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 12195.
The product of its (nonzero) digits is 8640, while the sum is 31.
The square root of 641290054 is about 25323.7053765834. The cubic root of 641290054 is about 862.3525159571.
The spelling of 641290054 in words is "six hundred forty-one million, two hundred ninety thousand, fifty-four".
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