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481390537 = 3123996473
BaseRepresentation
bin11100101100010…
…110111111001001
31020112211011200011
4130230112333021
51441213444122
6115433511521
714633515645
oct3454267711
91215734604
10481390537
11227806921
121152725a1
137896a894
1447d0dc25
152c3de377
hex1cb16fc9

481390537 has 8 divisors (see below), whose sum is σ = 497203200. Its totient is φ = 465595680.

The previous prime is 481390493. The next prime is 481390549. The reversal of 481390537 is 735093184.

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 481390537 - 215 = 481357769 is a prime.

It is a super-2 number, since 2×4813905372 = 463473698226296738, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 481390537.

It is not an unprimeable number, because it can be changed into a prime (481390577) 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, 71133 + ... + 77605.

It is an arithmetic number, because the mean of its divisors is an integer number (62150400).

Almost surely, 2481390537 is an apocalyptic number.

It is an amenable number.

481390537 is a deficient number, since it is larger than the sum of its proper divisors (15812663).

481390537 is a wasteful number, since it uses less digits than its factorization.

481390537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8903.

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 481390537 is about 21940.6138701724. The cubic root of 481390537 is about 783.7288782297.

The spelling of 481390537 in words is "four hundred eighty-one million, three hundred ninety thousand, five hundred thirty-seven".

Divisors: 1 31 2399 6473 74369 200663 15528727 481390537