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40630493 = 1719125791
BaseRepresentation
bin1001101011111…
…1100011011101
32211110020120002
42122333203131
540400133433
64010504045
71002232151
oct232774335
984406502
1040630493
1120a31322
1211735025
138557817
145579061
1538789e8
hex26bf8dd

40630493 has 8 divisors (see below), whose sum is σ = 45285120. Its totient is φ = 36227520.

The previous prime is 40630483. The next prime is 40630519. The reversal of 40630493 is 39403604.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40630493 - 28 = 40630237 is a prime.

It is a super-2 number, since 2×406304932 = 3301673922846098, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40630423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62573 + ... + 63218.

It is an arithmetic number, because the mean of its divisors is an integer number (5660640).

Almost surely, 240630493 is an apocalyptic number.

It is an amenable number.

40630493 is a deficient number, since it is larger than the sum of its proper divisors (4654627).

40630493 is a wasteful number, since it uses less digits than its factorization.

40630493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125827.

The product of its (nonzero) digits is 7776, while the sum is 29.

The square root of 40630493 is about 6374.2052837981. The cubic root of 40630493 is about 343.7827099232.

The spelling of 40630493 in words is "forty million, six hundred thirty thousand, four hundred ninety-three".

Divisors: 1 17 19 323 125791 2138447 2390029 40630493