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80532480 = 2103572107
BaseRepresentation
bin1001100110011…
…01010000000000
312121112110210110
410303031100000
5131104014410
611554031320
71665341400
oct463152000
9177473713
1080532480
1141505276
1222b78540
13138b8872
14a9a4800
15710b720
hex4ccd400

80532480 has 264 divisors, whose sum is σ = 302431968. Its totient is φ = 18235392.

The previous prime is 80532457. The next prime is 80532481. The reversal of 80532480 is 8423508.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80532481) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 752587 + ... + 752693.

Almost surely, 280532480 is an apocalyptic number.

80532480 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80532480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (151215984).

80532480 is an abundant number, since it is smaller than the sum of its proper divisors (221899488).

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

80532480 is a wasteful number, since it uses less digits than its factorization.

80532480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149 (or 124 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 80532480 is about 8973.9890795565. The cubic root of 80532480 is about 431.8408192682.

Adding to 80532480 its reverse (8423508), we get a palindrome (88955988).

The spelling of 80532480 in words is "eighty million, five hundred thirty-two thousand, four hundred eighty".