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47242325 = 5213145361
BaseRepresentation
bin1011010000110…
…1110001010101
310021220011021202
42310031301111
544043223300
64404322245
71112360504
oct264156125
9107804252
1047242325
1124737949
12139a3385
139a31150
1463ba83b
154232ad5
hex2d0dc55

47242325 has 12 divisors (see below), whose sum is σ = 63087108. Its totient is φ = 34886400.

The previous prime is 47242309. The next prime is 47242369. The reversal of 47242325 is 52324274.

47242325 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 31684 + 47210641 = 178^2 + 6871^2 .

It is not a de Polignac number, because 47242325 - 24 = 47242309 is a prime.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 72356 + ... + 73005.

It is an arithmetic number, because the mean of its divisors is an integer number (5257259).

Almost surely, 247242325 is an apocalyptic number.

It is an amenable number.

47242325 is a deficient number, since it is larger than the sum of its proper divisors (15844783).

47242325 is a wasteful number, since it uses less digits than its factorization.

47242325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145384 (or 145379 counting only the distinct ones).

The product of its digits is 13440, while the sum is 29.

The square root of 47242325 is about 6873.3052456587. The cubic root of 47242325 is about 361.5017641305.

Adding to 47242325 its reverse (52324274), we get a palindrome (99566599).

The spelling of 47242325 in words is "forty-seven million, two hundred forty-two thousand, three hundred twenty-five".

Divisors: 1 5 13 25 65 325 145361 726805 1889693 3634025 9448465 47242325