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10020261 = 310930643
BaseRepresentation
bin100110001110…
…010110100101
3200212002012210
4212032112211
510031122021
6554434033
7151112406
oct46162645
920762183
1010020261
115724409
123432919
1320cab64
14148b9ad
15d2de76
hex98e5a5

10020261 has 8 divisors (see below), whose sum is σ = 13483360. Its totient is φ = 6618672.

The previous prime is 10020253. The next prime is 10020271. The reversal of 10020261 is 16202001.

10020261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 10020261 - 23 = 10020253 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10020271) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14995 + ... + 15648.

It is an arithmetic number, because the mean of its divisors is an integer number (1685420).

Almost surely, 210020261 is an apocalyptic number.

It is an amenable number.

10020261 is a deficient number, since it is larger than the sum of its proper divisors (3463099).

10020261 is a wasteful number, since it uses less digits than its factorization.

10020261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30755.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 10020261 is about 3165.4795845180. The cubic root of 10020261 is about 215.5888741831.

Adding to 10020261 its reverse (16202001), we get a palindrome (26222262).

The spelling of 10020261 in words is "ten million, twenty thousand, two hundred sixty-one".

Divisors: 1 3 109 327 30643 91929 3340087 10020261