Base | Representation |
---|---|
bin | 111011011000010… |
… | …1101111001110100 |
3 | 12010212012121001012 |
4 | 1312300231321310 |
5 | 13040033414140 |
6 | 525413451352 |
7 | 100242551435 |
oct | 16660557164 |
9 | 5125177035 |
10 | 1992482420 |
11 | 932782595 |
12 | 477340b58 |
13 | 259a446a6 |
14 | 14c89d48c |
15 | b9dca265 |
hex | 76c2de74 |
1992482420 has 12 divisors (see below), whose sum is σ = 4184213124. Its totient is φ = 796992960.
The previous prime is 1992482411. The next prime is 1992482431. The reversal of 1992482420 is 242842991.
It can be written as a sum of positive squares in 2 ways, for example, as 1325396836 + 667085584 = 36406^2 + 25828^2 .
It is a hoax number, since the sum of its digits (41) 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 3 ways as a sum of consecutive naturals, for example, 49812041 + ... + 49812080.
It is an arithmetic number, because the mean of its divisors is an integer number (348684427).
Almost surely, 21992482420 is an apocalyptic number.
1992482420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
1992482420 is an abundant number, since it is smaller than the sum of its proper divisors (2191730704).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1992482420 is a wasteful number, since it uses less digits than its factorization.
1992482420 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 99624130 (or 99624128 counting only the distinct ones).
The product of its (nonzero) digits is 82944, while the sum is 41.
The square root of 1992482420 is about 44637.2313209500. The cubic root of 1992482420 is about 1258.3404750069.
The spelling of 1992482420 in words is "one billion, nine hundred ninety-two million, four hundred eighty-two thousand, four hundred twenty".
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