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1025025 = 35279173
BaseRepresentation
bin11111010010000000001
31221002001220
43322100001
5230300100
633545253
711466261
oct3722001
91832056
101025025
11640131
12415229
1329b731
141c97a1
15153aa0
hexfa401

1025025 has 24 divisors (see below), whose sum is σ = 1726080. Its totient is φ = 536640.

The previous prime is 1025021. The next prime is 1025029. The reversal of 1025025 is 5205201.

It is an interprime number because it is at equal distance from previous prime (1025021) and next prime (1025029).

It is not a de Polignac number, because 1025025 - 22 = 1025021 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a junction number, because it is equal to n+sod(n) for n = 1024995 and 1025013.

It is not an unprimeable number, because it can be changed into a prime (1025021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5839 + ... + 6011.

It is an arithmetic number, because the mean of its divisors is an integer number (71920).

It is a Proth number, since it is equal to 1001 ⋅ 210 + 1 and 1001 < 210.

21025025 is an apocalyptic number.

1025025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1025025 is a deficient number, since it is larger than the sum of its proper divisors (701055).

1025025 is a wasteful number, since it uses less digits than its factorization.

1025025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265 (or 260 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 15.

The square root of 1025025 is about 1012.4351831105. The cubic root of 1025025 is about 100.8273034818.

The spelling of 1025025 in words is "one million, twenty-five thousand, twenty-five".

Divisors: 1 3 5 15 25 75 79 173 237 395 519 865 1185 1975 2595 4325 5925 12975 13667 41001 68335 205005 341675 1025025