Base | Representation |
---|---|
bin | 10010111101110110… |
… | …011001100110100110 |
3 | 1221120021101101120100 |
4 | 102331312121212212 |
5 | 313201421224104 |
6 | 13204445044530 |
7 | 1320443562543 |
oct | 227566314646 |
9 | 57507341510 |
10 | 20365023654 |
11 | 8700585768 |
12 | 3b44256746 |
13 | 1bc71c1171 |
14 | db2983bca |
15 | 7e2d21139 |
hex | 4bdd999a6 |
20365023654 has 24 divisors (see below), whose sum is σ = 45200419992. Its totient is φ = 6622771680.
The previous prime is 20365023641. The next prime is 20365023661. The reversal of 20365023654 is 45632056302.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13796704 + ... + 13798179.
It is an arithmetic number, because the mean of its divisors is an integer number (1883350833).
Almost surely, 220365023654 is an apocalyptic number.
20365023654 is an abundant number, since it is smaller than the sum of its proper divisors (24835396338).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20365023654 is a wasteful number, since it uses less digits than its factorization.
20365023654 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 27594932 (or 27594929 counting only the distinct ones).
The product of its (nonzero) digits is 129600, while the sum is 36.
Adding to 20365023654 its reverse (45632056302), we get a palindrome (65997079956).
The spelling of 20365023654 in words is "twenty billion, three hundred sixty-five million, twenty-three thousand, six hundred fifty-four".
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