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10525021 = 131794523
BaseRepresentation
bin101000001001…
…100101011101
3201210201121121
4220021211131
510143300041
61013330541
7155314123
oct50114535
921721547
1010525021
115a39671
123636a51
132246830
14157d913
15dcd7d1
hexa0995d

10525021 has 8 divisors (see below), whose sum is σ = 11400480. Its totient is φ = 9658992.

The previous prime is 10525019. The next prime is 10525037. The reversal of 10525021 is 12052501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10525021 - 21 = 10525019 is a prime.

It is a super-2 number, since 2×105250212 = 221552134100882, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10524986 and 10525004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10525061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66 + ... + 4588.

It is an arithmetic number, because the mean of its divisors is an integer number (1425060).

Almost surely, 210525021 is an apocalyptic number.

It is an amenable number.

10525021 is a deficient number, since it is larger than the sum of its proper divisors (875459).

10525021 is a wasteful number, since it uses less digits than its factorization.

10525021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4715.

The product of its (nonzero) digits is 100, while the sum is 16.

The square root of 10525021 is about 3244.2288760197. The cubic root of 10525021 is about 219.1497554423.

Adding to 10525021 its reverse (12052501), we get a palindrome (22577522).

The spelling of 10525021 in words is "ten million, five hundred twenty-five thousand, twenty-one".

Divisors: 1 13 179 2327 4523 58799 809617 10525021