Base | Representation |
---|---|
bin | 100111110001110101… |
… | …111110001001101000 |
3 | 11002020200110200121000 |
4 | 213301311332021220 |
5 | 1144433303203140 |
6 | 31342141515000 |
7 | 3041306252220 |
oct | 476165761150 |
9 | 132220420530 |
10 | 42712162920 |
11 | 171289a21a9 |
12 | 8340272a60 |
13 | 4048c371ab |
14 | 20d2889080 |
15 | 119eb70a30 |
hex | 9f1d7e268 |
42712162920 has 128 divisors (see below), whose sum is σ = 162713030400. Its totient is φ = 9762778368.
The previous prime is 42712162853. The next prime is 42712162921. The reversal of 42712162920 is 2926121724.
42712162920 is a `hidden beast` number, since 4 + 2 + 7 + 1 + 2 + 1 + 629 + 20 = 666.
It is a super-2 number, since 2×427121629202 (a number of 22 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is not an unprimeable number, because it can be changed into a prime (42712162921) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2817319 + ... + 2832438.
It is an arithmetic number, because the mean of its divisors is an integer number (1271195550).
Almost surely, 242712162920 is an apocalyptic number.
42712162920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.
It is an amenable number.
42712162920 is an abundant number, since it is smaller than the sum of its proper divisors (120000867480).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
42712162920 is a wasteful number, since it uses less digits than its factorization.
42712162920 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5649784 (or 5649774 counting only the distinct ones).
The product of its (nonzero) digits is 24192, while the sum is 36.
The spelling of 42712162920 in words is "forty-two billion, seven hundred twelve million, one hundred sixty-two thousand, nine hundred twenty".
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