Base | Representation |
---|---|
bin | 10010111100100100… |
… | …001001011101100011 |
3 | 1221111202210221011121 |
4 | 102330210021131203 |
5 | 313130411233411 |
6 | 13202354553111 |
7 | 1320062400025 |
oct | 227444113543 |
9 | 57452727147 |
10 | 20343461731 |
11 | 869a39899a |
12 | 3b38b98797 |
13 | 1bc28b1b28 |
14 | dadb70015 |
15 | 7e0eb2571 |
hex | 4bc909763 |
20343461731 has 8 divisors (see below), whose sum is σ = 21160009728. Its totient is φ = 19536933000.
The previous prime is 20343461729. The next prime is 20343461771. The reversal of 20343461731 is 13716434302.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 20343461731 - 21 = 20343461729 is a prime.
It is a super-2 number, since 2×203434617312 (a number of 21 digits) contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (20343461701) by changing a digit.
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 7 ways as a sum of consecutive naturals, for example, 2500675 + ... + 2508796.
It is an arithmetic number, because the mean of its divisors is an integer number (2645001216).
Almost surely, 220343461731 is an apocalyptic number.
20343461731 is a deficient number, since it is larger than the sum of its proper divisors (816547997).
20343461731 is a wasteful number, since it uses less digits than its factorization.
20343461731 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5009633.
The product of its (nonzero) digits is 36288, while the sum is 34.
The spelling of 20343461731 in words is "twenty billion, three hundred forty-three million, four hundred sixty-one thousand, seven hundred thirty-one".
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