Base | Representation |
---|---|
bin | 10011000100001111… |
… | …101100001100011100 |
3 | 1221211202021102221212 |
4 | 103010033230030130 |
5 | 313411403113300 |
6 | 13223240443552 |
7 | 1323215551343 |
oct | 230417541434 |
9 | 57752242855 |
10 | 20472316700 |
11 | 87560a8600 |
12 | 3b741795b8 |
13 | 1c134b9384 |
14 | dc2d12b5a |
15 | 7ec466935 |
hex | 4c43ec31c |
20472316700 has 54 divisors (see below), whose sum is σ = 48830734008. Its totient is φ = 7444474400.
The previous prime is 20472316699. The next prime is 20472316769. The reversal of 20472316700 is 761327402.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 833864 + ... + 858063.
It is an arithmetic number, because the mean of its divisors is an integer number (904272852).
Almost surely, 220472316700 is an apocalyptic number.
20472316700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
20472316700 is an abundant number, since it is smaller than the sum of its proper divisors (28358417308).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20472316700 is a wasteful number, since it uses less digits than its factorization.
20472316700 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1691963 (or 1691945 counting only the distinct ones).
The product of its (nonzero) digits is 14112, while the sum is 32.
The spelling of 20472316700 in words is "twenty billion, four hundred seventy-two million, three hundred sixteen thousand, seven hundred".
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