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520272480 = 253571343277
BaseRepresentation
bin11111000000101…
…011101001100000
31100020222120200010
4133000223221200
52031142204410
6123343124520
715615146250
oct3700535140
91306876603
10520272480
11247753462
121262a3740
1383a32550
144d151960
1530a1ec20
hex1f02ba60

520272480 has 384 divisors, whose sum is σ = 2071415808. Its totient is φ = 106831872.

The previous prime is 520272427. The next prime is 520272521. The reversal of 520272480 is 84272025.

It is a Harshad number since it is a multiple of its sum of digits (30).

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 63 ways as a sum of consecutive naturals, for example, 1878102 + ... + 1878378.

It is an arithmetic number, because the mean of its divisors is an integer number (5394312).

Almost surely, 2520272480 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 520272480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1035707904).

520272480 is an abundant number, since it is smaller than the sum of its proper divisors (1551143328).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

520272480 is a wasteful number, since it uses less digits than its factorization.

520272480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358 (or 350 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 30.

The square root of 520272480 is about 22809.4822387533. The cubic root of 520272480 is about 804.2855845449.

The spelling of 520272480 in words is "five hundred twenty million, two hundred seventy-two thousand, four hundred eighty".