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40245933 = 3713197759
BaseRepresentation
bin1001100110000…
…1101010101101
32210201201001010
42121201222231
540300332213
63554335433
7666041040
oct231415255
983651033
1040245933
1120799402
121158a579
138451780
1454b8c57
1537eeac3
hex2661aad

40245933 has 32 divisors (see below), whose sum is σ = 69529600. Its totient is φ = 20108736.

The previous prime is 40245923. The next prime is 40245937. The reversal of 40245933 is 33954204.

40245933 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40245933 - 25 = 40245901 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40245933.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40245937) 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 31 ways as a sum of consecutive naturals, for example, 1308 + ... + 9066.

It is an arithmetic number, because the mean of its divisors is an integer number (2172800).

Almost surely, 240245933 is an apocalyptic number.

It is an amenable number.

40245933 is a deficient number, since it is larger than the sum of its proper divisors (29283667).

40245933 is a wasteful number, since it uses less digits than its factorization.

40245933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7801.

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 40245933 is about 6343.9682376254. The cubic root of 40245933 is about 342.6946569607.

The spelling of 40245933 in words is "forty million, two hundred forty-five thousand, nine hundred thirty-three".

Divisors: 1 3 7 13 19 21 39 57 91 133 247 273 399 741 1729 5187 7759 23277 54313 100867 147421 162939 302601 442263 706069 1031947 1916473 2118207 3095841 5749419 13415311 40245933