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40023461 = 47978779
BaseRepresentation
bin1001100010101…
…1010110100101
32210022101212102
42120223112211
540221222321
63545501445
7664123322
oct230532645
983271772
1040023461
1120657245
12114a1885
1383a442a
14545bb49
1537a8c0b
hex262b5a5

40023461 has 8 divisors (see below), whose sum is σ = 41301120. Its totient is φ = 38763648.

The previous prime is 40023437. The next prime is 40023463. The reversal of 40023461 is 16432004.

It is a happy number.

40023461 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 40023461 - 26 = 40023397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40023463) 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 7 ways as a sum of consecutive naturals, for example, 170 + ... + 8948.

It is an arithmetic number, because the mean of its divisors is an integer number (5162640).

Almost surely, 240023461 is an apocalyptic number.

It is an amenable number.

40023461 is a deficient number, since it is larger than the sum of its proper divisors (1277659).

40023461 is an equidigital number, since it uses as much as digits as its factorization.

40023461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8923.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 40023461 is about 6326.4098033561. The cubic root of 40023461 is about 342.0620391768.

Adding to 40023461 its reverse (16432004), we get a palindrome (56455465).

The spelling of 40023461 in words is "forty million, twenty-three thousand, four hundred sixty-one".

Divisors: 1 47 97 4559 8779 412613 851563 40023461