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80557908480 = 2934571923127
BaseRepresentation
bin100101100000110100…
…0000010001000000000
321200221012220202120000
41023001220002020000
52304440311032410
6101001403320000
75551204631640
oct1130150021000
9250835822500
1080557908480
1131189925a75
1213742820000
13779a8b3b8a
143c82cc6520
152167474dc0
hex12c1a02200

80557908480 has 1600 divisors, whose sum is σ = 365050920960. Its totient is φ = 16554295296.

The previous prime is 80557908463. The next prime is 80557908493. The reversal of 80557908480 is 8480975508.

80557908480 is a `hidden beast` number, since 8 + 0 + 557 + 9 + 0 + 8 + 4 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 634314177 + ... + 634314303.

Almost surely, 280557908480 is an apocalyptic number.

80557908480 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 80557908480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (182525460480).

80557908480 is an abundant number, since it is smaller than the sum of its proper divisors (284493012480).

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

80557908480 is a wasteful number, since it uses less digits than its factorization.

80557908480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211 (or 186 counting only the distinct ones).

The product of its (nonzero) digits is 3225600, while the sum is 54.

The spelling of 80557908480 in words is "eighty billion, five hundred fifty-seven million, nine hundred eight thousand, four hundred eighty".