Base | Representation |
---|---|
bin | 111101001000001… |
… | …110010100010010 |
3 | 2122110210011000211 |
4 | 331020032110102 |
5 | 4100021102340 |
6 | 245433234334 |
7 | 34262111152 |
oct | 7510162422 |
9 | 2573704024 |
10 | 1025565970 |
11 | 4869a5990 |
12 | 2475629aa |
13 | 13461bb90 |
14 | 9a2c4762 |
15 | 600815ea |
hex | 3d20e512 |
1025565970 has 64 divisors (see below), whose sum is σ = 2296377216. Its totient is φ = 323988480.
The previous prime is 1025565967. The next prime is 1025565973. The reversal of 1025565970 is 795655201.
It is an interprime number because it is at equal distance from previous prime (1025565967) and next prime (1025565973).
It is not an unprimeable number, because it can be changed into a prime (1025565973) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3217 + ... + 45403.
It is an arithmetic number, because the mean of its divisors is an integer number (35880894).
Almost surely, 21025565970 is an apocalyptic number.
1025565970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
1025565970 is an abundant number, since it is smaller than the sum of its proper divisors (1270811246).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1025565970 is a wasteful number, since it uses less digits than its factorization.
1025565970 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 42235.
The product of its (nonzero) digits is 94500, while the sum is 40.
The square root of 1025565970 is about 32024.4589337587. The cubic root of 1025565970 is about 1008.4503799348.
The spelling of 1025565970 in words is "one billion, twenty-five million, five hundred sixty-five thousand, nine hundred seventy".
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