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40905702 = 233757513
BaseRepresentation
bin1001110000001…
…0101111100110
32211222020002000
42130002233212
540432440302
64020430130
71004456415
oct234025746
984866060
1040905702
11210aa072
1211848346
138622b76
14560b47c
1538d031c
hex2702be6

40905702 has 16 divisors (see below), whose sum is σ = 90901680. Its totient is φ = 13635216.

The previous prime is 40905691. The next prime is 40905719. The reversal of 40905702 is 20750904.

40905702 is a `hidden beast` number, since 4 + 0 + 90 + 570 + 2 = 666.

40905702 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 2×409057022 = 3346552912225608, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 378703 + ... + 378810.

It is an arithmetic number, because the mean of its divisors is an integer number (5681355).

Almost surely, 240905702 is an apocalyptic number.

40905702 is an abundant number, since it is smaller than the sum of its proper divisors (49995978).

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

40905702 is a wasteful number, since it uses less digits than its factorization.

40905702 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 757524 (or 757518 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 40905702 is about 6395.7565619714. The cubic root of 40905702 is about 344.5571633941.

The spelling of 40905702 in words is "forty million, nine hundred five thousand, seven hundred two".

Divisors: 1 2 3 6 9 18 27 54 757513 1515026 2272539 4545078 6817617 13635234 20452851 40905702