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408241031 = 11349110631
BaseRepresentation
bin11000010101010…
…100001110000111
31001110011210102012
4120111110032013
51314002203111
6104302004435
713054664042
oct3025241607
91043153365
10408241031
1119a494590
12b487671b
1366768653
143c30bc59
1525c9048b
hex18554387

408241031 has 8 divisors (see below), whose sum is σ = 445523328. Its totient is φ = 370987000.

The previous prime is 408241027. The next prime is 408241037. The reversal of 408241031 is 130142804.

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 408241031 - 22 = 408241027 is a prime.

It is a super-2 number, since 2×4082410312 = 333321478783885922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 408240988 and 408241006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (408241037) by changing a digit.

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, 33086 + ... + 43716.

It is an arithmetic number, because the mean of its divisors is an integer number (55690416).

Almost surely, 2408241031 is an apocalyptic number.

408241031 is a deficient number, since it is larger than the sum of its proper divisors (37282297).

408241031 is a wasteful number, since it uses less digits than its factorization.

408241031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14133.

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 408241031 is about 20204.9754021132. The cubic root of 408241031 is about 741.8319784572.

Adding to 408241031 its reverse (130142804), we get a palindrome (538383835).

The spelling of 408241031 in words is "four hundred eight million, two hundred forty-one thousand, thirty-one".

Divisors: 1 11 3491 10631 38401 116941 37112821 408241031