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25145070 = 235838169
BaseRepresentation
bin101111111101…
…0111011101110
31202022111112220
41133322323232
522414120240
62254540210
7423505146
oct137727356
952274486
1025145070
1113214955
128507666
135295252
1434a7926
15231a5d0
hex17faeee

25145070 has 16 divisors (see below), whose sum is σ = 60348240. Its totient is φ = 6705344.

The previous prime is 25145053. The next prime is 25145129. The reversal of 25145070 is 7054152.

It is a self number, because there is not a number n which added to its sum of digits gives 25145070.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 419055 + ... + 419114.

It is an arithmetic number, because the mean of its divisors is an integer number (3771765).

Almost surely, 225145070 is an apocalyptic number.

25145070 is an abundant number, since it is smaller than the sum of its proper divisors (35203170).

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

25145070 is a wasteful number, since it uses less digits than its factorization.

25145070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 838179.

The product of its (nonzero) digits is 1400, while the sum is 24.

The square root of 25145070 is about 5014.4860155354. The cubic root of 25145070 is about 292.9662663505.

The spelling of 25145070 in words is "twenty-five million, one hundred forty-five thousand, seventy".

Divisors: 1 2 3 5 6 10 15 30 838169 1676338 2514507 4190845 5029014 8381690 12572535 25145070