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40006036 = 2271428787
BaseRepresentation
bin1001100010011…
…1000110010100
32210021111222001
42120213012110
540220143121
63545245044
7664021450
oct230470624
983244861
1040006036
1120645144
1211493784
138399515
145455660
1537a3991
hex2627194

40006036 has 12 divisors (see below), whose sum is σ = 80012128. Its totient is φ = 17145432.

The previous prime is 40006033. The next prime is 40006061. The reversal of 40006036 is 63060004.

It is a happy number.

40006036 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40006033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 714366 + ... + 714421.

Almost surely, 240006036 is an apocalyptic number.

It is an amenable number.

40006036 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.

40006036 is a wasteful number, since it uses less digits than its factorization.

40006036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1428798 (or 1428796 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 40006036 is about 6325.0324900351. The cubic root of 40006036 is about 342.0123908282.

The spelling of 40006036 in words is "forty million, six thousand, thirty-six", and thus it is an eban number.

Divisors: 1 2 4 7 14 28 1428787 2857574 5715148 10001509 20003018 40006036