Base | Representation |
---|---|
bin | 10010110110101100… |
… | …100100100001011110 |
3 | 1221020220112212212222 |
4 | 102312230210201132 |
5 | 312430210201210 |
6 | 13144520425342 |
7 | 1314455500235 |
oct | 226654444136 |
9 | 57226485788 |
10 | 20245006430 |
11 | 8649861a80 |
12 | 3b10018252 |
13 | 1ba838c45c |
14 | da0a61b1c |
15 | 7d7515655 |
hex | 4b6b2485e |
20245006430 has 32 divisors (see below), whose sum is σ = 41124659040. Its totient is φ = 7107963520.
The previous prime is 20245006423. The next prime is 20245006471. The reversal of 20245006430 is 3460054202.
It is a self number, because there is not a number n which added to its sum of digits gives 20245006430.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3170009 + ... + 3176388.
It is an arithmetic number, because the mean of its divisors is an integer number (1285145595).
Almost surely, 220245006430 is an apocalyptic number.
20245006430 is an abundant number, since it is smaller than the sum of its proper divisors (20879652610).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20245006430 is a wasteful number, since it uses less digits than its factorization.
20245006430 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6346444.
The product of its (nonzero) digits is 5760, while the sum is 26.
The spelling of 20245006430 in words is "twenty billion, two hundred forty-five million, six thousand, four hundred thirty".
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