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25880242 = 2193779233
BaseRepresentation
bin110001010111…
…0011010110010
31210200212000111
41202232122302
523111131432
62322411534
7432656413
oct142563262
953625014
1025880242
1113677233
128800baa
135491a6b
14361980a
152413347
hex18ae6b2

25880242 has 32 divisors (see below), whose sum is σ = 42681600. Its totient is φ = 11726208.

The previous prime is 25880237. The next prime is 25880249. The reversal of 25880242 is 24208852.

It is not an unprimeable number, because it can be changed into a prime (25880249) 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 15 ways as a sum of consecutive naturals, for example, 110958 + ... + 111190.

It is an arithmetic number, because the mean of its divisors is an integer number (1333800).

Almost surely, 225880242 is an apocalyptic number.

25880242 is a deficient number, since it is larger than the sum of its proper divisors (16801358).

25880242 is a wasteful number, since it uses less digits than its factorization.

25880242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370.

The product of its (nonzero) digits is 10240, while the sum is 31.

The square root of 25880242 is about 5087.2627217395. The cubic root of 25880242 is about 295.7940571984.

The spelling of 25880242 in words is "twenty-five million, eight hundred eighty thousand, two hundred forty-two".

Divisors: 1 2 19 37 38 74 79 158 233 466 703 1406 1501 2923 3002 4427 5846 8621 8854 17242 18407 36814 55537 111074 163799 327598 349733 681059 699466 1362118 12940121 25880242