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40030036 = 22171930983
BaseRepresentation
bin1001100010110…
…0111101010100
32210022201212221
42120230331110
540221430121
63545552124
7664151434
oct230547524
983281787
1040030036
1120661182
12114a5644
1383a7417
1454602c4
1537aab41
hex262cf54

40030036 has 24 divisors (see below), whose sum is σ = 78079680. Its totient is φ = 17845632.

The previous prime is 40030027. The next prime is 40030043. The reversal of 40030036 is 63003004.

It is a happy number.

40030036 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×400300362 = 3204807564322592, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 14200 + ... + 16783.

It is an arithmetic number, because the mean of its divisors is an integer number (3253320).

Almost surely, 240030036 is an apocalyptic number.

It is an amenable number.

40030036 is a deficient number, since it is larger than the sum of its proper divisors (38049644).

40030036 is a wasteful number, since it uses less digits than its factorization.

40030036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31023 (or 31021 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 40030036 is about 6326.9294290359. The cubic root of 40030036 is about 342.0807693141.

The spelling of 40030036 in words is "forty million, thirty thousand, thirty-six", and thus it is an eban number.

Divisors: 1 2 4 17 19 34 38 68 76 323 646 1292 30983 61966 123932 526711 588677 1053422 1177354 2106844 2354708 10007509 20015018 40030036