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23057646 = 233842941
BaseRepresentation
bin101011111110…
…1010011101110
31121101110010220
41113331103232
521400321041
62142112210
7366662313
oct127752356
947343126
1023057646
1112019607
12787b666
134a140a1
1430c2d0a
152056d66
hex15fd4ee

23057646 has 8 divisors (see below), whose sum is σ = 46115304. Its totient is φ = 7685880.

The previous prime is 23057641. The next prime is 23057669. The reversal of 23057646 is 64675032.

It is a sphenic number, since it is the product of 3 distinct primes.

23057646 is an admirable number.

It is a super-2 number, since 2×230576462 = 1063310078122632, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23057641) 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 3 ways as a sum of consecutive naturals, for example, 1921465 + ... + 1921476.

It is an arithmetic number, because the mean of its divisors is an integer number (5764413).

Almost surely, 223057646 is an apocalyptic number.

23057646 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

23057646 is a wasteful number, since it uses less digits than its factorization.

23057646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3842946.

The product of its (nonzero) digits is 30240, while the sum is 33.

The square root of 23057646 is about 4801.8377731864. The cubic root of 23057646 is about 284.6240904269.

The spelling of 23057646 in words is "twenty-three million, fifty-seven thousand, six hundred forty-six".

Divisors: 1 2 3 6 3842941 7685882 11528823 23057646