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490248538 = 213294991303
BaseRepresentation
bin11101001110001…
…001100101011010
31021011111012120021
4131032021211122
52001000423123
6120351421054
715102021013
oct3516114532
91234435507
10490248538
11231806a8a
1211822478a
137a74c6c0
144917800a
152d08dc5d
hex1d38995a

490248538 has 32 divisors (see below), whose sum is σ = 821520000. Its totient is φ = 217861056.

The previous prime is 490248527. The next prime is 490248553. The reversal of 490248538 is 835842094.

It is a super-2 number, since 2×4902485382 = 480687258022274888, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 490248494 and 490248503.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 375595 + ... + 376897.

It is an arithmetic number, because the mean of its divisors is an integer number (25672500).

Almost surely, 2490248538 is an apocalyptic number.

490248538 is a deficient number, since it is larger than the sum of its proper divisors (331271462).

490248538 is a wasteful number, since it uses less digits than its factorization.

490248538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1846.

The product of its (nonzero) digits is 276480, while the sum is 43.

The square root of 490248538 is about 22141.5568106671. The cubic root of 490248538 is about 788.5067868261.

The spelling of 490248538 in words is "four hundred ninety million, two hundred forty-eight thousand, five hundred thirty-eight".

Divisors: 1 2 13 26 29 58 377 499 754 998 1303 2606 6487 12974 14471 16939 28942 33878 37787 75574 188123 376246 491231 650197 982462 1300394 8452561 16905122 18855713 37711426 245124269 490248538