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1025601 = 3192947
BaseRepresentation
bin11111010011001000001
31221002212020
43322121001
5230304401
633552053
711501043
oct3723101
91832766
101025601
11640605
12415629
1329ba85
141c9a93
15153d36
hexfa641

1025601 has 12 divisors (see below), whose sum is σ = 1444752. Its totient is φ = 647064.

The previous prime is 1025579. The next prime is 1025611. The reversal of 1025601 is 1065201.

1025601 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1025601 - 26 = 1025537 is a prime.

It is a super-2 number, since 2×10256012 = 2103714822402, which contains 22 as substring.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (1025611) 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, 610 + ... + 1556.

It is an arithmetic number, because the mean of its divisors is an integer number (120396).

21025601 is an apocalyptic number.

1025601 is the 641-st centered pentagonal number.

It is an amenable number.

1025601 is a deficient number, since it is larger than the sum of its proper divisors (419151).

1025601 is an equidigital number, since it uses as much as digits as its factorization.

1025601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 988 (or 969 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 1025601 is about 1012.7196058140. The cubic root of 1025601 is about 100.8461861600.

The spelling of 1025601 in words is "one million, twenty-five thousand, six hundred one".

Divisors: 1 3 19 57 361 947 1083 2841 17993 53979 341867 1025601