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40013354 = 21937149191
BaseRepresentation
bin1001100010100…
…0111000101010
32210021220000002
42120220320222
540220411404
63545343002
7664052003
oct230507052
983256002
1040013354
112064a697
1211497a62
13839c954
1454581aa
1537a5c1e
hex2628e2a

40013354 has 32 divisors (see below), whose sum is σ = 65664000. Its totient is φ = 18221760.

The previous prime is 40013341. The next prime is 40013371. The reversal of 40013354 is 45331004.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 209399 + ... + 209589.

It is an arithmetic number, because the mean of its divisors is an integer number (2052000).

Almost surely, 240013354 is an apocalyptic number.

40013354 is a deficient number, since it is larger than the sum of its proper divisors (25650646).

40013354 is a wasteful number, since it uses less digits than its factorization.

40013354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 40013354 is about 6325.6109586347. The cubic root of 40013354 is about 342.0332434655.

Adding to 40013354 its reverse (45331004), we get a palindrome (85344358).

The spelling of 40013354 in words is "forty million, thirteen thousand, three hundred fifty-four".

Divisors: 1 2 19 37 38 74 149 191 298 382 703 1406 2831 3629 5513 5662 7067 7258 11026 14134 28459 56918 104747 134273 209494 268546 540721 1052983 1081442 2105966 20006677 40013354