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40454230 = 2519212917
BaseRepresentation
bin1001101001010…
…0100001010110
32211010021202211
42122110201112
540324013410
64003024034
71000566235
oct232244126
984107684
1040454230
1120920953
121166b01a
1384c551b
145530b1c
15384168a
hex2694856

40454230 has 16 divisors (see below), whose sum is σ = 76650480. Its totient is φ = 15329952.

The previous prime is 40454213. The next prime is 40454231. The reversal of 40454230 is 3245404.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40454231) 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 7 ways as a sum of consecutive naturals, for example, 106269 + ... + 106648.

It is an arithmetic number, because the mean of its divisors is an integer number (4790655).

Almost surely, 240454230 is an apocalyptic number.

40454230 is a deficient number, since it is larger than the sum of its proper divisors (36196250).

40454230 is a wasteful number, since it uses less digits than its factorization.

40454230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212943.

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 40454230 is about 6360.3639832953. The cubic root of 40454230 is about 343.2848571602.

Adding to 40454230 its reverse (3245404), we get a palindrome (43699634).

The spelling of 40454230 in words is "forty million, four hundred fifty-four thousand, two hundred thirty".

Divisors: 1 2 5 10 19 38 95 190 212917 425834 1064585 2129170 4045423 8090846 20227115 40454230