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25993469 = 31853983
BaseRepresentation
bin110001100101…
…0000011111101
31210220121100002
41203022003331
523123242334
62325044045
7433640465
oct143120375
953817302
1025993469
1113744307
128856625
135501468
143648ba5
152436b7e
hex18ca0fd

25993469 has 8 divisors (see below), whose sum is σ = 26890752. Its totient is φ = 25099920.

The previous prime is 25993441. The next prime is 25993489. The reversal of 25993469 is 96439952.

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 25993469 - 28 = 25993213 is a prime.

It is a super-2 number, since 2×259934692 = 1351320861307922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25993489) by changing a digit.

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, 25952 + ... + 26934.

It is an arithmetic number, because the mean of its divisors is an integer number (3361344).

Almost surely, 225993469 is an apocalyptic number.

It is an amenable number.

25993469 is a deficient number, since it is larger than the sum of its proper divisors (897283).

25993469 is an equidigital number, since it uses as much as digits as its factorization.

25993469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1867.

The product of its digits is 524880, while the sum is 47.

The square root of 25993469 is about 5098.3790561315. The cubic root of 25993469 is about 296.2247995560.

It can be divided in two parts, 25993 and 469, that added together give a palindrome (26462).

The spelling of 25993469 in words is "twenty-five million, nine hundred ninety-three thousand, four hundred sixty-nine".

Divisors: 1 31 853 983 26443 30473 838499 25993469