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383225503 = 3143287491
BaseRepresentation
bin10110110101111…
…000111010011111
3222201002212120011
4112311320322133
51241101204003
6102005504051
712332235343
oct2665707237
9881085504
10383225503
11187358aa1
12a8412027
136151a36b
1438c79623
152399d46d
hex16d78e9f

383225503 has 8 divisors (see below), whose sum is σ = 404788736. Its totient is φ = 362237400.

The previous prime is 383225501. The next prime is 383225569. The reversal of 383225503 is 305522383.

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 383225503 - 21 = 383225501 is a prime.

It is a super-2 number, since 2×3832255032 = 293723572299206018, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (383225501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142413 + ... + 145078.

It is an arithmetic number, because the mean of its divisors is an integer number (50598592).

Almost surely, 2383225503 is an apocalyptic number.

383225503 is a deficient number, since it is larger than the sum of its proper divisors (21563233).

383225503 is a wasteful number, since it uses less digits than its factorization.

383225503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287565.

The product of its (nonzero) digits is 21600, while the sum is 31.

The square root of 383225503 is about 19576.1462755058. The cubic root of 383225503 is about 726.3592434930.

Adding to 383225503 its reverse (305522383), we get a palindrome (688747886).

The spelling of 383225503 in words is "three hundred eighty-three million, two hundred twenty-five thousand, five hundred three".

Divisors: 1 31 43 1333 287491 8912221 12362113 383225503