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16242025 = 522347601
BaseRepresentation
bin111101111101…
…010101101001
31010120011212111
4331331111221
513124221100
61340042321
7255024562
oct75752551
933504774
1016242025
119193968
1255333a1
133498a87
14222b169
15165c6ba
hexf7d569

16242025 has 24 divisors (see below), whose sum is σ = 21498624. Its totient is φ = 12144000.

The previous prime is 16242019. The next prime is 16242053. The reversal of 16242025 is 52024261.

It is not a de Polignac number, because 16242025 - 29 = 16241513 is a prime.

It is a super-2 number, since 2×162420252 = 527606752201250, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16241987 and 16242005.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26725 + ... + 27325.

It is an arithmetic number, because the mean of its divisors is an integer number (895776).

Almost surely, 216242025 is an apocalyptic number.

It is an amenable number.

16242025 is a deficient number, since it is larger than the sum of its proper divisors (5256599).

16242025 is a wasteful number, since it uses less digits than its factorization.

16242025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 681 (or 676 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 16242025 is about 4030.1395757467. The cubic root of 16242025 is about 253.2484085530.

Adding to 16242025 its reverse (52024261), we get a palindrome (68266286).

The spelling of 16242025 in words is "sixteen million, two hundred forty-two thousand, twenty-five".

Divisors: 1 5 23 25 47 115 235 575 601 1081 1175 3005 5405 13823 15025 27025 28247 69115 141235 345575 649681 706175 3248405 16242025