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10207257 = 38340993
BaseRepresentation
bin100110111100…
…000000011001
3201012120201120
4212330000121
510103113012
61002435453
7152521524
oct46740031
921176646
1010207257
115841955
123502b89
132164cc8
1414d9bbb
15d6958c
hex9bc019

10207257 has 8 divisors (see below), whose sum is σ = 13773984. Its totient is φ = 6722688.

The previous prime is 10207247. The next prime is 10207271. The reversal of 10207257 is 75270201.

10207257 is digitally balanced in base 3, 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 a de Polignac number, because none of the positive numbers 2k-10207257 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10207247) 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, 20248 + ... + 20745.

It is an arithmetic number, because the mean of its divisors is an integer number (1721748).

Almost surely, 210207257 is an apocalyptic number.

It is an amenable number.

10207257 is a deficient number, since it is larger than the sum of its proper divisors (3566727).

10207257 is an equidigital number, since it uses as much as digits as its factorization.

10207257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41079.

The product of its (nonzero) digits is 980, while the sum is 24.

The square root of 10207257 is about 3194.8798099459. The cubic root of 10207257 is about 216.9217086096.

Adding to 10207257 its reverse (75270201), we get a palindrome (85477458).

The spelling of 10207257 in words is "ten million, two hundred seven thousand, two hundred fifty-seven".

Divisors: 1 3 83 249 40993 122979 3402419 10207257