Base | Representation |
---|---|
bin | 10011000000101100… |
… | …101001101011011100 |
3 | 1221200121021122222211 |
4 | 103000230221223130 |
5 | 313301134042313 |
6 | 13213313050204 |
7 | 1321563635410 |
oct | 230054515334 |
9 | 57617248884 |
10 | 20412799708 |
11 | 8725547604 |
12 | 3b58256964 |
13 | 1c0407b212 |
14 | db905cd40 |
15 | 7e710be3d |
hex | 4c0b29adc |
20412799708 has 24 divisors (see below), whose sum is σ = 43227106272. Its totient is φ = 8233734144.
The previous prime is 20412799699. The next prime is 20412799711. The reversal of 20412799708 is 80799721402.
It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.
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, 21441541 + ... + 21442492.
It is an arithmetic number, because the mean of its divisors is an integer number (1801129428).
Almost surely, 220412799708 is an apocalyptic number.
20412799708 is a gapful number since it is divisible by the number (28) formed by its first and last digit.
It is an amenable number.
20412799708 is an abundant number, since it is smaller than the sum of its proper divisors (22814306564).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20412799708 is a wasteful number, since it uses less digits than its factorization.
20412799708 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 42884061 (or 42884059 counting only the distinct ones).
The product of its (nonzero) digits is 508032, while the sum is 49.
It can be divided in two parts, 20412 and 799708, that multiplied together give a square (16323639696 = 1277642).
The spelling of 20412799708 in words is "twenty billion, four hundred twelve million, seven hundred ninety-nine thousand, seven hundred eight".
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