Base | Representation |
---|---|
bin | 100101111011001… |
… | …1110010001011010 |
3 | 10021200120022012011 |
4 | 1023312132101122 |
5 | 10101234232340 |
6 | 330135340134 |
7 | 43351450306 |
oct | 11366362132 |
9 | 3250508164 |
10 | 1272570970 |
11 | 5a3373450 |
12 | 2b622164a |
13 | 173853298 |
14 | c1020d06 |
15 | 76ac30ea |
hex | 4bd9e45a |
1272570970 has 64 divisors (see below), whose sum is σ = 2590050816. Its totient is φ = 446100480.
The previous prime is 1272570799. The next prime is 1272570973. The reversal of 1272570970 is 790752721.
It is a happy number.
It is not an unprimeable number, because it can be changed into a prime (1272570973) 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 31 ways as a sum of consecutive naturals, for example, 458527 + ... + 461293.
It is an arithmetic number, because the mean of its divisors is an integer number (40469544).
Almost surely, 21272570970 is an apocalyptic number.
1272570970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
1272570970 is an abundant number, since it is smaller than the sum of its proper divisors (1317479846).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1272570970 is a wasteful number, since it uses less digits than its factorization.
1272570970 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2935.
The product of its (nonzero) digits is 61740, while the sum is 40.
The square root of 1272570970 is about 35673.1127041081. The cubic root of 1272570970 is about 1083.6623977612.
The spelling of 1272570970 in words is "one billion, two hundred seventy-two million, five hundred seventy thousand, nine hundred seventy".
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