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16675025 = 52739137
BaseRepresentation
bin111111100111…
…000011010001
31011101011211112
4333213003101
513232100100
61353223105
7261510143
oct77470321
934334745
1016675025
11945a214
125701a95
1335baba3
142300c93
1516e5b35
hexfe70d1

16675025 has 12 divisors (see below), whose sum is σ = 20962572. Its totient is φ = 13155840.

The previous prime is 16675003. The next prime is 16675039. The reversal of 16675025 is 52057661.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 3139984 + 13535041 = 1772^2 + 3679^2 .

It is a de Polignac number, because none of the positive numbers 2k-16675025 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16674982 and 16675000.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2744 + ... + 6393.

It is an arithmetic number, because the mean of its divisors is an integer number (1746881).

Almost surely, 216675025 is an apocalyptic number.

It is an amenable number.

16675025 is a deficient number, since it is larger than the sum of its proper divisors (4287547).

16675025 is an equidigital number, since it uses as much as digits as its factorization.

16675025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9220 (or 9215 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 16675025 is about 4083.5064589149. The cubic root of 16675025 is about 255.4791707929.

The spelling of 16675025 in words is "sixteen million, six hundred seventy-five thousand, twenty-five".

Divisors: 1 5 25 73 365 1825 9137 45685 228425 667001 3335005 16675025