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25061387 = 134741017
BaseRepresentation
bin101111110011…
…0100000001011
31202011020202112
41133212200023
522403431022
62253052535
7423006161
oct137464013
952136675
1025061387
1113167a9a
12848714b
135266130
143485231
1523008e2
hex17e680b

25061387 has 8 divisors (see below), whose sum is σ = 27564096. Its totient is φ = 22640832.

The previous prime is 25061339. The next prime is 25061401. The reversal of 25061387 is 78316052.

It is a happy number.

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 25061387 - 216 = 24995851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25061327) 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, 19898 + ... + 21119.

It is an arithmetic number, because the mean of its divisors is an integer number (3445512).

Almost surely, 225061387 is an apocalyptic number.

25061387 is a deficient number, since it is larger than the sum of its proper divisors (2502709).

25061387 is a wasteful number, since it uses less digits than its factorization.

25061387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41077.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 25061387 is about 5006.1349362557. The cubic root of 25061387 is about 292.6409071015.

The spelling of 25061387 in words is "twenty-five million, sixty-one thousand, three hundred eighty-seven".

Divisors: 1 13 47 611 41017 533221 1927799 25061387