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245380406 = 2494324821
BaseRepresentation
bin11101010000000…
…11010100110110
3122002201121122012
432220003110312
51000304133111
640203204222
76036461525
oct1650032466
9562647565
10245380406
11116568a27
126a216672
133bab5b0b
14248364bc
151682048b
hexea03536

245380406 has 8 divisors (see below), whose sum is σ = 368159904. Its totient is φ = 122660440.

The previous prime is 245380391. The next prime is 245380427. The reversal of 245380406 is 604083542.

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

It is a Curzon number.

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 3 ways as a sum of consecutive naturals, for example, 2525 + ... + 22296.

It is an arithmetic number, because the mean of its divisors is an integer number (46019988).

Almost surely, 2245380406 is an apocalyptic number.

245380406 is a deficient number, since it is larger than the sum of its proper divisors (122779498).

245380406 is a wasteful number, since it uses less digits than its factorization.

245380406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29766.

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 245380406 is about 15664.6227531977. The cubic root of 245380406 is about 626.0561606874.

The spelling of 245380406 in words is "two hundred forty-five million, three hundred eighty thousand, four hundred six".

Divisors: 1 2 4943 9886 24821 49642 122690203 245380406