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40326620 = 2252016331
BaseRepresentation
bin1001100111010…
…1010111011100
32210212210201112
42121311113130
540310422440
64000201152
7666525215
oct231652734
983783645
1040326620
1120843a94
12116091b8
13847c409
1454da40c
153818965
hex26755dc

40326620 has 12 divisors (see below), whose sum is σ = 84685944. Its totient is φ = 16130640.

The previous prime is 40326593. The next prime is 40326623. The reversal of 40326620 is 2662304.

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40326623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1008146 + ... + 1008185.

It is an arithmetic number, because the mean of its divisors is an integer number (7057162).

Almost surely, 240326620 is an apocalyptic number.

It is an amenable number.

40326620 is an abundant number, since it is smaller than the sum of its proper divisors (44359324).

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

40326620 is a wasteful number, since it uses less digits than its factorization.

40326620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2016340 (or 2016338 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 40326620 is about 6350.3244011625. The cubic root of 40326620 is about 342.9235210437.

Adding to 40326620 its reverse (2662304), we get a palindrome (42988924).

The spelling of 40326620 in words is "forty million, three hundred twenty-six thousand, six hundred twenty".

Divisors: 1 2 4 5 10 20 2016331 4032662 8065324 10081655 20163310 40326620