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25940135 = 513399079
BaseRepresentation
bin110001011110…
…1000010100111
31210210220011202
41202331002213
523120041020
62323553115
7433326134
oct142750247
953726152
1025940135
1113708231
12882b79b
1354b30c0
14363358b
152425e75
hex18bd0a7

25940135 has 8 divisors (see below), whose sum is σ = 33522720. Its totient is φ = 19155744.

The previous prime is 25940107. The next prime is 25940179. The reversal of 25940135 is 53104952.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25940135 - 212 = 25936039 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25940098 and 25940107.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 199475 + ... + 199604.

It is an arithmetic number, because the mean of its divisors is an integer number (4190340).

Almost surely, 225940135 is an apocalyptic number.

25940135 is a deficient number, since it is larger than the sum of its proper divisors (7582585).

25940135 is a wasteful number, since it uses less digits than its factorization.

25940135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399097.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 25940135 is about 5093.1458844215. The cubic root of 25940135 is about 296.0220605362.

The spelling of 25940135 in words is "twenty-five million, nine hundred forty thousand, one hundred thirty-five".

Divisors: 1 5 13 65 399079 1995395 5188027 25940135