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10012257 = 322833931
BaseRepresentation
bin100110001100…
…011001100001
3200211200020100
4212030121201
510030343012
6554333013
7151050153
oct46143141
920750210
1010012257
1157193a2
12342a169
1320c7318
141488ad3
15d2b8dc
hex98c661

10012257 has 12 divisors (see below), whose sum is σ = 14516944. Its totient is φ = 6649560.

The previous prime is 10012253. The next prime is 10012271. The reversal of 10012257 is 75221001.

It is not a de Polignac number, because 10012257 - 22 = 10012253 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10012253) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 582 + ... + 4512.

Almost surely, 210012257 is an apocalyptic number.

It is an amenable number.

10012257 is a deficient number, since it is larger than the sum of its proper divisors (4504687).

10012257 is a wasteful number, since it uses less digits than its factorization.

10012257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4220 (or 4217 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 18.

The square root of 10012257 is about 3164.2150685439. The cubic root of 10012257 is about 215.5314560844.

Adding to 10012257 its reverse (75221001), we get a palindrome (85233258).

The spelling of 10012257 in words is "ten million, twelve thousand, two hundred fifty-seven".

Divisors: 1 3 9 283 849 2547 3931 11793 35379 1112473 3337419 10012257