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25980337 = 29998663
BaseRepresentation
bin110001100011…
…0110110110001
31210212221022201
41203012312301
523122332322
62324503201
7433554265
oct143066661
953787281
1025980337
1113735459
12884ab01
1354c84a6
1436440a5
152432d27
hex18c6db1

25980337 has 4 divisors (see below), whose sum is σ = 25992000. Its totient is φ = 25968676.

The previous prime is 25980329. The next prime is 25980359. The reversal of 25980337 is 73308952.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 25980337 - 23 = 25980329 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25980296 and 25980305.

It is not an unprimeable number, because it can be changed into a prime (25980307) 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 3 ways as a sum of consecutive naturals, for example, 1333 + ... + 7330.

It is an arithmetic number, because the mean of its divisors is an integer number (6498000).

Almost surely, 225980337 is an apocalyptic number.

It is an amenable number.

25980337 is a deficient number, since it is larger than the sum of its proper divisors (11663).

25980337 is an equidigital number, since it uses as much as digits as its factorization.

25980337 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11662.

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 25980337 is about 5097.0910331286. The cubic root of 25980337 is about 296.1749065190.

The spelling of 25980337 in words is "twenty-five million, nine hundred eighty thousand, three hundred thirty-seven".

Divisors: 1 2999 8663 25980337