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25145034 = 2322318793
BaseRepresentation
bin101111111101…
…0111011001010
31202022111111120
41133322323022
522414120114
62254540110
7423505065
oct137727312
952274446
1025145034
1113214922
128507636
135295225
1434a78dc
15231a5a9
hex17faeca

25145034 has 16 divisors (see below), whose sum is σ = 50518272. Its totient is φ = 8343648.

The previous prime is 25145027. The next prime is 25145039. The reversal of 25145034 is 43054152.

It is a super-2 number, since 2×251450342 = 1264545469722312, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25144995 and 25145013.

It is not an unprimeable number, because it can be changed into a prime (25145039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8059 + ... + 10734.

It is an arithmetic number, because the mean of its divisors is an integer number (3157392).

Almost surely, 225145034 is an apocalyptic number.

25145034 is an abundant number, since it is smaller than the sum of its proper divisors (25373238).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25145034 is a wasteful number, since it uses less digits than its factorization.

25145034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19021.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 25145034 is about 5014.4824259339. The cubic root of 25145034 is about 292.9661265379.

Adding to 25145034 its reverse (43054152), we get a palindrome (68199186).

The spelling of 25145034 in words is "twenty-five million, one hundred forty-five thousand, thirty-four".

Divisors: 1 2 3 6 223 446 669 1338 18793 37586 56379 112758 4190839 8381678 12572517 25145034